Yallzi is building an analytics engine to create the 4th dimension of advertising. Join our journey! We’ll review how we made our decisions on technology, schema, architecture, aggregation framework and more as well as how MongoDB allows us to iterate quickly -- which is critical for our bootstrapped startup.

1. Building an Analytics Engine on
MongoDB to Revolutionize Advertising
@ Yallzi
/crowd-Fun the Internet

2. “Hello (MongoDB) World!”
Steve and ALL@YALLZI
{
“title”: ”yallzi@yallzi”,
“email”: ”steve@yallzi.com”,
“linkedin”: ”https://www.linkedin.com/in/stevebond”,
“twitter”: [“company”: “@YALLZI”,
“personal”: “@TheOneTechie”],
“web”: “yallzi.com”,
"location": "garage/Austin_TX"
}

3. Agenda
/ About
/ Challenges, requirements
/ Journey
/ Outcome, next
/crowd-Fun the audience

4. About
/crowd-Fun the moderator

5. Who are you?

6. /about

7. /about

8. Crowd-Fun the internet.
Started *not* that long ago... in a galaxy that involved moving from NYC to Austin
1. Lost all local NYC hangouts over two short nights
2. Is there a guide to living like an Austin local and get to know business owners?
3. No excuses not to unpack boxes.
We asked ourselves:
Why there is no app for this?
/about
Dreaming of..
- Not Unpacking!
- Cold Beer
- Movie,
- Local Museum
- BBQ! I am in
Texas...
Can’t a local just share
the best places to
hangout and let me
chat vendors up ??!

9. /about
I want to Share my City: “My Stay-cation is someone’s perfect Vacation”: I’m
searching for an easier way to help others experience the town I love. Family and
friends constantly ask for recommendations for their visits. They share these with
their friends and families… and then I get calls from people they’ve shared it with
who I don’t even know. AND at the worst times of the day. There’s gotta be an
easier way to share the town I love…
I want Advertising that works for me: “Invite vendors to your dialogue” I
am not sure which venues to select. I wish I could have a dialogue with
multiple vendors to help me pick the best spots for my group and needs… I
wish my vendors fought for my business, maybe through hand-picked
discounts and freebies? I’m sure they would like this personal connection
too.
I want to Explore New Cities: “Someone’s Stay-cation is my perfect
Vacation” I am planning a vacation. We love traveling like locals. Hours of
scouring the web for perfect places are turning to weeks… This is becoming a
second job! We just want to find a local’s perfect staycation. Isn’t there an easier
way for me to experience Places others love?

10. /jɑːlzi:/
YALLZI
/about

12. YALLZI helps you share all your favorite places with friends or the whole world.
YALLZI helps you explore new worlds that other Yallziers have shared.
YALLZI breaks the barrier between Vendor and Consumer.
/about
Vision

13. /Challenges, Requirements

14. /challenges, requirements
Strength-Skills
● C, C++, Java
● Product Development
● Content Management
● SQL - Any RDBMS since mid 1990s
● NoSQL - 5 years of dev and prod
● Data Warehousing
● Ad Servers and Analytics
● Proven ability to squeeze 4 weeks of work out of 7 days of free demo version
● Mean Extra Dry Martini’s

15. /challenges, requirements
Needs
● Data set of POI covering major verticals in US and International
● Ensure parallel development of web, iOS and Android apps
● APP that does not need a lot of design work initially but will tell a story and please investors
● Multi-language support
● Save Time and Money on Everything
● Lighting fast speed :
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps

16. /challenges, requirements
● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps
● APP that does not need a lot of design work initially but will tell a story and please investors
● Multi-language support
● Save Time and Money on Everything
● Lighting fast speed :
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps
Solutions

17. /challenges, requirements
Solutions
● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps RESTful dev
● APP that does not need a lot of design work initially but will tell a story and please investors
● Multi-language support
● Save Time and Money on Everything
● Lighting fast speed :
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps

18. /challenges, requirements
● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps RESTful dev
● APP that does not need a lot of design … Hold Expensive Design - go simple
● Multi-language support
● Save Time and Money on Everything
● Lighting fast speed :
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps
Solutions

19. /challenges, requirements
● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps RESTful dev
● APP that does not need a lot of design … Hold Expensive Design - go simple
● Multi-language support Pick A DB!
● Save Time and Money on Everything
● Lighting fast speed :
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps
Solutions

20. /challenges, requirements
● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps RESTful dev
● APP that does not need a lot of design … Hold Expensive Design - go simple
● Multi-language support Pick A DB!
● Save Time and Money on Everything Go Open Source
● Lighting fast speed :
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps
Solutions

21. /challenges, requirements
● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps RESTful dev
● APP that does not need a lot of design … Hold Expensive Design - go simple
● Multi-language support Pick A DB!
● Save Time and Money on Everything Go Open Source
● Lighting fast speed : Pick A DB!
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps
Solutions

22. ● Data set of POI covering major verticals in US and International -- FACTUAL, US Based POI
● Ensure parallel development of web, iOS and Android apps RESTful dev
● APP that does not need a lot of design … Hold Expensive Design - go simple
● Multi-language support Pick A DB!
● Save Time and Money on Everything Go Open Source
● Lighting fast speed : Pick A DB!
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real time analytics collection and processing to power apps
Pick A DB!
/challenges, requirements
Solutions

23. - expressive query language
- indexing- GeoIndexing
- performance
- scalability
- flexibility
- no need to learn new languages
- easy to use management tools
- a vendor behind the product
- opensource / strong community
- run well on Cloud (deployment architecture
flexibility)
/challenges, requirements
Pick a DB...
SQL noSQL

24. Select * from actors a, activities ac,
history h where a.actorID=...

25. Selecting MongoDB
● Multi-language support
● Save Time and Money on Everything - Open Source/Supported by Vendor
● Lightning fast speed to
○ vision → prototype → alpha/beta → GA
○ iterate
○ scale
○ data and geo data retrieval
○ DB is NOT a bottleneck for frequent app builds
● Close to real-time analytics collection and processing to power apps
/challenges, requirements

26. /Journey

27. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access
○ Indexing
○ Availability
○ Scale
○ Flexibility
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

28. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing
○ Availability
○ Scale
○ Flexibility
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve
All calls are made as HTTP requests to
one common backend residing on one
URL and serviced by one application, so
all calls will have a common prefix:
http://<server>:<port>/api

29. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability
○ Scale
○ Flexibility
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

30. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale
○ Flexibility
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

31. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

32. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

33. ● Database Selection - MongoDB 2.6
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

34. 1. Location (Dynamic)
a. geo : latitude, longitude (geoLocation)
2. Preferences (Historical & “Acquired”)
a. Existing preference
- Bob loves bicycling followed by
a beer and lives on UES... A
fellow Yallzier just biked East
River Greenway, followed by a
beer at Pony Bar. Yallzi
renders this plan to Bob.
- A fellow Yallzier Has Shared
Interests and fellow Yalzier is a
referrer
a. Shared
- Bob and Sue both like
Mexican, Sue loves Rosa
Mexicana. Yallzi asks, Will
Bob?)
- Sue has similar interests and is
a referer
a. Adjacent and could be “Acquired”
- Bob likes Ballets and Opera.
Sue loves this + Broadway
Show. Yallzi suggest Broadway
show)
- Sue has similar interests and is
a referrer
1. Availability (Dynamic)
a. time
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“user”: {
“name”: “Yallzier”,
“email”: “yallzi@yallzi.com”,
“phone”: “+1-2121212121”,
“socialLogin”: “FACEBOOK_Yallzier”,
“deviceToken”: [
“appleToken123”,
“appleToken234”,
...
]}
} }
/journey
/api/v2/user/getDetails
Actors(Consumers)
Parameters
String auth: authentication token
previously received
double lat: latitude of users current
position
long: longitude of users current
position

35. 1. Location (Dynamic)
a. geo : latitude, longitude (geoLocation)
2. Preferences (Historical & “Acquired”)
a. Existing preference
- Bob loves bicycling followed
by a beer and lives on UES...
A fellow Yallzier just biked
East River Greenway,
followed by a beer at Pony
Bar. Yallzi renders this plan
to Bob.
- A fellow Yallzier Has Shared
Interests and fellow Yalzier is
a referrer
a. Shared
- Bob and Sue both like
Mexican, Sue loves Rosa
Mexicana. Yallzi asks, Will
Bob?)
- Sue has similar interests and
is a referer
a. Adjacent and could be “Acquired”
- Bob likes Ballets and Opera.
Sue loves this + Broadway
Show. Yallzi suggest
Broadway show)
- Sue has similar interests and
is a referrer
1. Availability (Dynamic)
a. time
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“user”: {
“name”: “Yallzier”,
“email”: “yallzi@yallzi.com”,
“phone”: “+1-2121212121”,
“socialLogin”: “FACEBOOK_Yallzier”,
“deviceToken”: [
“appleToken123”,
“appleToken234”,
...
]}
} }
/journey
Actors(Consumers)
/api/v2/user/getDetails Parameters
String auth: authentication token
previously received
double lat: latitude of users current
position
long: longitude of users current
position

36. 1. Location (Dynamic)
a. geo : latitude, longitude (geoLocation)
1. Preferences (Historical & “Acquired”)
a. Existing preference
- Bob loves bicycling followed by
a beer and lives on UES... A
fellow Yallzier just biked East
River Greenway, followed by a
beer at Pony Bar. Yallzi
renders this plan to Bob.
- A fellow Yallzier Has Shared
Interests and fellow Yalzier is a
referrer
a. Shared
- Bob and Sue both like
Mexican, Sue loves Rosa
Mexicana. Yallzi asks, Will
Bob?)
- Sue has similar interests and is
a referer
a. Adjacent and could be “Acquired”
- Bob likes Ballets and Opera.
Sue loves this + Broadway
Show. Yallzi suggest Broadway
show)
- Sue has similar interests and is
a referrer
1. Availability (Dynamic)
/journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“user”: {
“name”: “Yallzier”,
“email”: “yallzi@yallzi.com”,
“phone”: “+1-2121212121”,
“socialLogin”: “FACEBOOK_Yallzier”,
“deviceToken”: [
“appleToken123”,
“appleToken234”,
...
]}
} }
Parameters
String auth: authentication token
previously received
double lat: latitude of users current
position
long: longitude of users current
position
/api/v2/user/getDetails
Actors(Consumers)
Parameters
String auth: authentication token
previously received
double lat: latitude of users current
position
long: longitude of users current
position

37. 1. Location (Dynamic)
a. geo : latitude, longitude (geoLocation)
1. Preferences (Historical & “Acquired”)
a. Existing preference
- Bob loves bicycling followed by
a beer and lives on UES... A
fellow Yallzier just biked East
River Greenway, followed by a
beer at Pony Bar. Yallzi
renders this plan to Bob.
- A fellow Yallzier Has Shared
Interests and fellow Yalzier is a
referrer
a. Shared
- Bob and Sue both like
Mexican, Sue loves Rosa
Mexicana. Yallzi asks, Will
Bob?)
- Sue has similar interests and is
a referer
a. Adjacent and could be “Acquired”
- Bob likes Ballets and Opera.
Sue loves this + Broadway
Show. Yallzi suggest Broadway
show)
- Sue has similar interests and is
a referrer
1. Availability (Dynamic)
/journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“user”: {
“name”: “Yallzier”,
“email”: “yallzi@yallzi.com”,
“phone”: “+1-2121212121”,
“socialLogin”: “FACEBOOK_Yallzier”,
“deviceToken”: [
“appleToken123”,
“appleToken234”,
...
]}
} }
Parameters
String auth: authentication token
previously received
double lat: latitude of users current
position
long: longitude of users current
position
Actors(Consumers)
/api/v2/user/getDetails

38. 1. Location (Static)
2. Vertical (Static)
a. Food & Dining
b. Recreation
c. Entertainment
d. Arts & Culture
e. Sports
3. Category
a. Mexican
4. Offerings-Deals (dynamic)
5. Hours
/journey
{
"message": "",
"status": "OK",
"data": {
"date": "10/26/14",!
"deals": [
{
"dealId": “DINE_184a2409-7d4c-4854-ad1c-e7de099064ee",
"name": "Porfirio’s Tacos",!
"imageUrl": "http://api.yallzi.com/api/resources/rest.png",
"address": "1512 Holly Street",
"locality": "Austin",
"postcode": "78703",
"country": "us",
"type": "Restaurant",
"locationId": "184a2409-7d4c-4854-ad1c-e7de099064ee",
"latitude": 30.255314,
"longitude": -97.730564,
"details": "",
"amount": 0,
"distance": 0.8936700034260777,
"categoryLabels": [
[
"Mexicanl",
“Tex Mex” ],
...
],
"hours": { "monday": [ ]}....
Parameters:
String auth: authentication token
double lat: latitude of users current
position
double long: longitude of users current
position"
String verticalId
int numberOfPeople: number of
participants"
long date: time stamp of event start"
double distance: search radius
double searchLat, if different from users
current position
double searchLong, if different from users
current position
Actors(Vendors)
/api/v2/deal/list

39. 1. Location (Static)
2. Vertical (Static)
a. Food & Dining
b. Recreation
c. Entertainment
d. Arts & Culture
e. Sports
3. Category
a. Mexican
4. Offerings-Deals (dynamic)
5. Hours
/journey
{
"message": "",
"status": "OK",
"data": {
"date": "10/26/14",!
"deals": [
{
"dealId": “DINE_184a2409-7d4c-4854-ad1c-e7de099064ee",
"name": "Porfirio’s Tacos",!
"imageUrl": "http://api.yallzi.com/api/resources/rest.png",
"address": "1512 Holly Street",
"locality": "Austin",
"postcode": "78703",
"country": "us",
"type": "Restaurant",
"locationId": "184a2409-7d4c-4854-ad1c-e7de099064ee",
"latitude": 30.255314,
"longitude": -97.730564,
"details": "",
"amount": 0,
"distance": 0.8936700034260777,
"categoryLabels": [
[
"Mexicanl",
“Tex Mex” ],
...
],
"hours": { "monday": [ ]}....
Parameters:
String auth: authentication token
double lat: latitude of users current
position
double long: longitude of users current
position"
String verticalId
int numberOfPeople: number of
participants"
long date: time stamp of event start"
double distance: search radius
double searchLat, if different from users
current position
double searchLong, if different from users
current position
/api/v2/deal/list
Actors(Vendors)

40. 1. Location (Static)
2. Vertical (Static)
a. Food & Dining
b. Recreation
c. Entertainment
d. Arts & Culture
e. Sports
3. Category
a. Mexican
4. Offerings-Deals (dynamic)
5. Hours
/journey
{
"message": "",
"status": "OK",
"data": {
"date": "10/26/14",!
"deals": [
{
"dealId": “DINE_184a2409-7d4c-4854-ad1c-e7de099064ee",
"name": "Porfirio’s Tacos",!
"imageUrl": "http://api.yallzi.com/api/resources/rest.png",
"address": "1512 Holly Street",
"locality": "Austin",
"postcode": "78703",
"country": "us",
"type": "Restaurant",
"locationId": "184a2409-7d4c-4854-ad1c-e7de099064ee",
"latitude": 30.255314,
"longitude": -97.730564,
"details": "",
"amount": 0,
"distance": 0.8936700034260777,
"categoryLabels": [
[
"Mexicanl",
“Tex Mex” ],
...
],
"hours": { "monday": [ ]}....
Parameters:
String auth: authentication token
double lat: latitude of users current
position
double long: longitude of users current
position"
String verticalId
int numberOfPeople: number of
participants"
long date: time stamp of event start"
double distance: search radius
double searchLat, if different from users
current position
double searchLong, if different from users
current position
Actors(Vendors)
/api/v2/deal/list

41. ● Database Selection - MongoDB 2.6->3.0. DB size decreased by 70%
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

42. ● Database Selection - MongoDB 3.0
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

43. Analytics
an·a·lyt·ics
/ˌanl’itiks /
noun
1. the systematic computational analysis of data or statistics.
o information resulting from the systematic analysis of data or statistics.
We are Analyzing the ACTOR ACTIVITIES through Referrers and Referrals and Following…
We analyze
● intent( following)
● checkIn ( confirmed at the place)
● Scoop( reviews, after the visit)
With emphasis on people voting with their “feet”
/journey

44. User Activities include
● intent to do stuff and/or share it
● intent to “borrow” or reuse of these
plans
● Checked in Activities of Referrers
● Checked in Activities of Followers
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,!
“data”: [
{
“id”: “abcdef1234”,
“referral”: “abcdefabcdef”
...}, ...] }
/journey
Referrer/Referral new Concept

45. /journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,!
“data”: [
{
“id”: “abcdef1234”,
“referral”: “abcdefabcdef”
...}, ...] }
User Activities include
● intent to do stuff and/or share it
● intent to “borrow” or reuse of these
plans
● Checked in Activities of Referrers
● Checked in Activities of Followers
Referrer/Referral new Concept

46. User Activities include
● intent to do stuff and/or share it
● intent to “borrow” or reuse of these
plans
● Checked in Activities of Referrers
● Checked in Activities of Followers
/journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,!
“data”: [
{
“id”: “abcdef1234”,
“referral”: “abcdefabcdef”
...}, ...] }
Referrer/Referral new Concept

47. User Activities include
● intent to do stuff and/or share it
● intent to “borrow” or reuse of these
plans
● Checked in Activities of Referrers
● Checked in Activities of Followers
/journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,!
“data”: [
{
“id”: “abcdef1234”,
“referral”: “abcdefabcdef”
...}, ...] }
Referrer/Referral new Concept

48. Analytics
... And ... Secret Potion:
Yallzi enables:
● suggestions in your current or desired location that match your interests
● suggestions for “acquired” interests (delta between having common and different preferences)
● identification of emerging trends
● preparation for personal recommendations based on your and people with common interests behavior
● identification of new ratings model (people vote with their feet)
/journey

49. ● Activities collection is sharable
● Initial activity owner is a Referrer.
Referrals are ‘followed”
● Vote signifies acceptance
● Ratings and Reviews=People Vote
with their feet + Comments- is
mined and analyzed real time
/journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,
“YallziID”: [“xxx1”, “xxx2”, ...],
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” : “ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “This is a comment”
}, ...
]}
api/v2/yallzi/get
Activity Log
PARAMs:
String auth: authentication token
previously received
Double lat: latitude of users current
position
Double long: longitude of users
current position"
String yallziId: event to update"

50. /journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,
“YallziID”: [“xxx1”, “xxx2”, ...],
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” : “ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “This is a comment”
}, ...
]}
● Activities collection is sharable
● Initial activity owner is a Referrer.
Referrals are ‘followed”
● Vote signifies acceptance
● Ratings and Reviews=People
Vote with their feet + Comments-
is mined and analyzed real time
api/v2/yallzi/get
Activity Log
PARAMs:
String auth: authentication token
previously received
Double lat: latitude of users current
position
Double long: longitude of users
current position"
String yallziId: event to update"

51. /journey
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,
“YallziID”: [“xxx1”, “xxx2”, ...],
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” : “ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “This is a comment”
}, ...
]}
● Activities collection is sharable
● Initial activity owner is a Referrer.
Referrals are ‘followed”
● Vote signifies acceptance
● Ratings and Reviews=People Vote
with their feet + Comments- is
mined and analyzed real time
api/v2/yallzi/get
Activity Log
PARAMs:
String auth: authentication token
previously received
Double lat: latitude of users current
position
Double long: longitude of users
current position"
String yallziId: event to update"

52. /journey
Actor Activity
{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,
“YallziID”: [“xxx1”, “xxx2”, ...],
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” : “ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “This is a comment”
}, ...
]}
PARAMs: String auth: authentication
token previously received double lat:
latitude of users current position
double long: longitude of users current
position"
String yallziId: event to update"
● Activities collection is sharable
● Initial activity owner is a Referrer.
Referrals are ‘followed”
● Vote signifies acceptance
● Ratings and Reviews=People Vote
with their feet + Comments- is
mined and analyzed real time
api/v2/yallzi/get

53. ● Database Selection - MongoDB 3.0
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

54. {{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,!
“children”: [“xxx1”, “xxx2”, ...]
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” :
“ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “Looking for a table for 1”
}, ...
/journey
Vendor Direct Messaging
● Message - Direct Interaction with the vendor (online)
● Consumer initiates bidirectional conversation with
business/brand
● Analyzed to provide service
● Can be private or public and become a hospitality message
that all consumers can view by interacting with a link.

55. /journey
Vendor Direct Messaging
● Message - Direct Interaction with the vendor (online)
● Consumer initiates bidirectional conversation with
business/brand
● Analyzed to provide service
● Can be private or public and become a hospitality message
that all consumers can view by interacting with a link.

56. {{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,!
“children”: [“xxx1”, “xxx2”, ...],
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” :
“ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “table for 1,quiet place?”
}, ...
/journey
Vendor Direct Messaging
● Message - Direct Interaction with the vendor (online)
● Consumer initiates bidirectional conversation with
business/brand
● Analyzed to provide service
● Can be private or public and become a hospitality message
that all consumers can view by interacting with a link.

57. {{
"message": "",
"status": "OK",
"auth": “156D66FE8B9097A336DF325589837E674B”,
“data”: {
“id”: “xxx”,
“date”: 1445901561064,!
“dealId”: “yyy”,!
“children”: [“xxx1”, “xxx2”, ...],
“groupId”: “541f149be4b0c4c655ad5721”,
“referral”: “12345677”,
“votes”: [
“bead43122” : 0,
“edba43edf” : 1
],
“comments”: [ {
“user” :
“ab12345678901234567”,
“timestamp” : 14455667788,
“text” : “table for 1,quiet place?”
}, ...
/journey
Vendor Direct Messaging
● Message - Direct Interaction with the vendor (online)
● Consumer initiates bidirectional conversation with
business/brand
● Analyzed to provide service
● Can be private or public and become a hospitality
message that all consumers can view by interacting
with a link.

58. ● Database Selection - MongoDB 3.0
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

59. Personal “funBox” Collection
● Your most frequent referrers can
be pre-processed
○ Yallzi personal “funBox”
/journey
Grouping and Deltas
{WIP}
Will include:
- Plans of most frequently used
referrers
- Does not require any action on
user part
- Analyses Yallzier’s activity log

60. ● Database Selection - MongoDB 3.0
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment : AWS, MMS
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

61. ● Database Selection - MongoDB 3.0
● Design
○ DB’s: POI, Actors, Actor Activities(Analytics)
○ Access : API
○ Indexing: Frugal, don’t over-index to avoid degradation
○ Availability: 24/7 365 - revisit at deployment meeting
○ Scale: targeting 100,000 active users in 3-6 months
○ Flexibility : Don’t throw kitchen sink in DB. Keep DB’s collections as slim as possible
● Schema
○ Actors
○ Analytics
○ Advertising Secret Potion
○ Personalize This!
○ Deployment : AWS, MMS
/journey
Building BackEnd: Data Meets The App
while both constantly Evolve

62. Outcome, Next and Recap

63. Outcome
- Dream to Prototype : 2.5 weeks
- Prototype to Alpha: 1 month
- iOS App development: ~5 months
- Android App development: ~ 2 months
- Suspended
- Rebranded and Pivoted 5 months into Dev. Adjust within 2 weeks
- Beta Releases: twice a week
- AWS hosting $36 a month
- MongoDB : rock solid
/outcome, next

64. Recap (our lessons)
- MongoDB is great fit for bootstrapped startUps like Yallzi or for an innovative project with aggressive goals
- Take risks, but stick to the following:
- Simplify everything from storage to aggregation downstream
- Understand what you are storing and where (vis a vis static and dynamic data)
- Determine what data will be made public/private
- Don’t go Index happy
- Flexibility is not throwing the kitchen sink in DB. Flexibility is for growth and dynamics of your business.
- Overuse of database strengths can create a big SPOF
- Simplify access patterns/abstract
- If it is too easy to do, you might not have thought of something
- Have fun! It will work!
/outcome, next

65. What’s Next
- Development:
- Completing within next few weeks
- Beta launch:
- Follow us on Twitter @Yallzi or @TheOneTechie for the date to install the app and Crowd-Fun the
internet
- We are looking for partners and developers
- Funding :
- We are going strong for the first prize in crowdfunding drives
- We are in conversations with TX based accelerators
- We love talking to investors even those who want to say NO!
- Community:
- We are looking for advise and happy to share our thoughts
- Future:
- See y’all on Yallzi and at MongoDB World next year
- Philosophy:
- Do one thing, do it right, test, repeat!
/outcome, next

66. Hit is on Twitter
- @YALLZI
- @TheOneTechie
Yes, We’re Hiring:
- http://yallzi.com/internships/
Eureka Moments:
- http://yallzi.com/internships/our-eureka-moments/
Angel Profile:
- https://angel.co/yallzi
On Social Choice Data:
- https://www.linkedin.com/pulse/article/social-choice-data-steve-bond
- https://www.linkedin.com/pulse/how-do-groups-decide-social-choice-
data-part-2-steve-bond
On App Adoption:
- https://www.linkedin.com/pulse/article/first-date-app-steve-bond
- https://www.linkedin.com/pulse/article/userapp-dating-steve-bond
Holly Street Garage, Austin, Texas
----------------------------------------------
Also Found on:
KickStarter,
LaunchLeader,
CrunchBase..
and other fine ‘net sites
/outcome, next

67. Thank you

68. /Tricks
Actually, there are no tricks, whatsoever… except
- be “lazy” developers making the best of the tools we build
- provide users, be they sharers, benefactors, or business owners with simple tools:
- map and ‘save’ their most memorable moments and share it with y’all
- see others best memorable moments
- reach out to vendors to invite them into the conversation
For this we needed a thought through, light-weight and flexible model that allows us to build/add
additional artifacts and store them.
We also decided to bank of reverse of Similar Interests and see if people might want to discover
stuff they never experiences before. We are still working on it
We are looking forward to learn from reputable companies and scrappy startUps!

69. What challenges do you solve when you don’t get paid for it?
● A revolution in combining social choice data with behavioral data
that results in Kick Ass User Experience
● New Dimension of Advertising
● We don’t reinvent the wheel, even though we tried 17 times and
came up with helium inflatable wheels supporting a beach chair
with 2 beers and my puppy than annoys me when I work
/What We Do

70. #startUp Recent SCRUM NOTES
● “Man, where did all those competitors come from?”
● VC Breaking News: said they Loved the idea and we definitely should.. call them after we have 1 million DL’s.
● Alerts: Looks like we hacked our own bank account but due to error in the code we left 23 cents. Whose code is
it, i don’t care whose money..
● Battle of API versus App developer is won by API. After all: iPhone processing power is probably greater than
our server!