The document discusses software project estimation and scheduling. It explains that accurate estimation is important to avoid cost overruns and schedule slips. Common problems with estimation include predicting software costs, schedules, and risks. Fundamental estimation questions relate to effort, time, and costs. Estimation methods include expert judgment, analogy, top-down and bottom-up approaches, and algorithmic modeling. Productivity and function measures are used to estimate software size. Changing technologies also impact estimation accuracy. Compression techniques can shorten schedules through crashing or fast tracking.
Metrics for Mofel-Based Systems DevelopmentBruce Douglass
This presentation describes the value of metrics, key concepts for effective use of metrics, and provides some common metrics for project management, model-based design, and quality assurance. Created by Dr. Bruce Powel Douglass, Ph.D.
Building credible cost and schedule estimates requires discipline, skill, and experience. All 3 can be acquired over time. The starting point is understanding what processes make up the discipline of estimating
Metrics for Mofel-Based Systems DevelopmentBruce Douglass
This presentation describes the value of metrics, key concepts for effective use of metrics, and provides some common metrics for project management, model-based design, and quality assurance. Created by Dr. Bruce Powel Douglass, Ph.D.
Building credible cost and schedule estimates requires discipline, skill, and experience. All 3 can be acquired over time. The starting point is understanding what processes make up the discipline of estimating
Effort estimation for software developmentSpyros Ktenas
Software effort estimation has been an important issue for almost everyone in software industry at some point. Below I will try to give some basic details on methods, best practices, common mistakes and available tools.
You may also check a tool implementing methods for estimation at http://effort-estimation.gatory.com/
Spyros Ktenas
http://open-works.org/profiles/spyros-ktenas
Deze presentatie beschrijft een praktische implementatie van het gebruik van Nesma functiepunten in Agile deliveries. Deze presentatie is gepresenteerd door Richard Sweer van Infinity tijdens de webinar Afrekenen met functiepunten. Voor meer info: www.nesma.org; conference@nesma.org.
The question – what does Done Look Like? – was asked every week on the program that changed my life as a Program Manager. Rocky Flats Environmental Technology Site (RFETS) was the marketing term for the 3rd worst toxic waste site on the planet. RFETS was a nuclear bomb manufacturing plant, built in 1951, operating until 1989, and closed in 2005. I served as the VP of Program Management of the ITC (Information Technology and Communications) group, providing ERP, purpose built IT, voice, and data systems for 5,000 employees and contractors of the Bomb Factory.
The Basis of Estimate is the starting point for Closed Loop Control project management.
How much will it cost? When will we be done? What is going to be delivered for that cost and time?
These are random numbers "estimated" by a variety of means.
But the BOEs are the "steering targets" for the closed loop ocntrol system
Housing is an important activity that directly indicates the standard of living of the people, with the increase in growth of population due to rapid industrialization scarcity of developed land, the need for multi-storeyed housing complex has increased to a considerable extent , so people turned to multi-storeyed residential apartments instead of individual houses, when city development reached a maximum development of suburban’s areas began the people living in the city should have advocate housing for comfortable and peaceful living.
Effort estimation for software developmentSpyros Ktenas
Software effort estimation has been an important issue for almost everyone in software industry at some point. Below I will try to give some basic details on methods, best practices, common mistakes and available tools.
You may also check a tool implementing methods for estimation at http://effort-estimation.gatory.com/
Spyros Ktenas
http://open-works.org/profiles/spyros-ktenas
Deze presentatie beschrijft een praktische implementatie van het gebruik van Nesma functiepunten in Agile deliveries. Deze presentatie is gepresenteerd door Richard Sweer van Infinity tijdens de webinar Afrekenen met functiepunten. Voor meer info: www.nesma.org; conference@nesma.org.
The question – what does Done Look Like? – was asked every week on the program that changed my life as a Program Manager. Rocky Flats Environmental Technology Site (RFETS) was the marketing term for the 3rd worst toxic waste site on the planet. RFETS was a nuclear bomb manufacturing plant, built in 1951, operating until 1989, and closed in 2005. I served as the VP of Program Management of the ITC (Information Technology and Communications) group, providing ERP, purpose built IT, voice, and data systems for 5,000 employees and contractors of the Bomb Factory.
The Basis of Estimate is the starting point for Closed Loop Control project management.
How much will it cost? When will we be done? What is going to be delivered for that cost and time?
These are random numbers "estimated" by a variety of means.
But the BOEs are the "steering targets" for the closed loop ocntrol system
Housing is an important activity that directly indicates the standard of living of the people, with the increase in growth of population due to rapid industrialization scarcity of developed land, the need for multi-storeyed housing complex has increased to a considerable extent , so people turned to multi-storeyed residential apartments instead of individual houses, when city development reached a maximum development of suburban’s areas began the people living in the city should have advocate housing for comfortable and peaceful living.
This blog help you to estimate the cost of software development project. For more detail information Read full article here, https://www.vrinsofts.com/how-to-estimate-software-development-project-cost/
A Review of Agile Software Effort Estimation MethodsEditor IJCATR
Software cost estimation is an essential aspect of software project management and therefore the success or failure of a software
project depends on accuracy in estimating effort, time and cost. Software cost estimation is a scientific activity that requires knowledge of a
number of relevant attributes that will determine which estimation method to use in a given situation. Over the years various studies were done
to evaluate software effort estimation methods however due to introduction of new software development methods, the reviews have not
captured new software development methods. Agile software development method is one of the recent popular methods that were not taken
into account in previous cost estimation reviews. The main aim of this paper is to review existing software effort estimation methods
exhaustively by exploring estimation methods suitable for new software development methods.
SOFTWARE COST ESTIMATION USING FUZZY NUMBER AND PARTICLE SWARM OPTIMIZATIONIJCI JOURNAL
Software cost estimation is a process to calculate effort, time and cost of a project, and assist in better
decision making about the feasibility or viability of project. Accurate cost prediction is required to
effectively organize the project development tasks and to make economical and strategic planning, project
management. There are several known and unknown factors affect this process, so cost estimation is a very
difficult process. Software size is a very important factor that impacts the process of cost estimation.
Accuracy of cost estimation is directly proportional to the accuracy of the size estimation.
Failure of Software projects has always been an important area of focus for the Software Industry.
Implementation phase is not the only phase for Software projects to fail, instead planning and estimation
steps are the most crucial ones, which lead to their failure. More than 50% of the total projects fail which
go beyond the estimated time and cost. The Standish group‘s CHAOS reports failure rate of 70% for the
software projects. This paper presents the existing algorithms for software estimation and the relevant
concepts of Fuzzy Theory and PSO. Also explains the proposed algorithm with experimental results.
This is a Software Estimation Guide for Practitioners, It includes information about the Software Estimation Process, Complexities, Estimation Methods (Size, Effort, Cost) and Techniques (Function Point, COCOMO and the Use Case based Estimation)
Metrics serve as important indicator of the efficiency and effectiveness of software process. Analysis of defined metrics helps identify area of improvement and devise subsequent actions.......Read more
How Should We Estimate Agile Software Development Projects and What Data Do W...Glen Alleman
Estimating techniques for an acquisition program progresses from analogies to actual cost method as the program matures and more information is known. The analogy method is most appropriate early in the program life cycle when the system is not yet fully defined.
Avoid software project horror stories - check the reality value of the estima...Harold van Heeringen
Many large software projects turn into software horror stories, resulting in newspaper headlines and even political issues. Often, the project costs and schedule were estimated unrealistically optimistic, using immature estimation techniques. A relatively simple way to avoid many problems is to perform a reality check on the estimate. This presentation was given on the conference of the International Cost Estimating and Analysis Association (ICEAA2014), June 2014 (Denver, USA)
GDG Cloud Southlake #33: Boule & Rebala: Effective AppSec in SDLC using Deplo...James Anderson
Effective Application Security in Software Delivery lifecycle using Deployment Firewall and DBOM
The modern software delivery process (or the CI/CD process) includes many tools, distributed teams, open-source code, and cloud platforms. Constant focus on speed to release software to market, along with the traditional slow and manual security checks has caused gaps in continuous security as an important piece in the software supply chain. Today organizations feel more susceptible to external and internal cyber threats due to the vast attack surface in their applications supply chain and the lack of end-to-end governance and risk management.
The software team must secure its software delivery process to avoid vulnerability and security breaches. This needs to be achieved with existing tool chains and without extensive rework of the delivery processes. This talk will present strategies and techniques for providing visibility into the true risk of the existing vulnerabilities, preventing the introduction of security issues in the software, resolving vulnerabilities in production environments quickly, and capturing the deployment bill of materials (DBOM).
Speakers:
Bob Boule
Robert Boule is a technology enthusiast with PASSION for technology and making things work along with a knack for helping others understand how things work. He comes with around 20 years of solution engineering experience in application security, software continuous delivery, and SaaS platforms. He is known for his dynamic presentations in CI/CD and application security integrated in software delivery lifecycle.
Gopinath Rebala
Gopinath Rebala is the CTO of OpsMx, where he has overall responsibility for the machine learning and data processing architectures for Secure Software Delivery. Gopi also has a strong connection with our customers, leading design and architecture for strategic implementations. Gopi is a frequent speaker and well-known leader in continuous delivery and integrating security into software delivery.
Smart TV Buyer Insights Survey 2024 by 91mobiles.pdf91mobiles
91mobiles recently conducted a Smart TV Buyer Insights Survey in which we asked over 3,000 respondents about the TV they own, aspects they look at on a new TV, and their TV buying preferences.
State of ICS and IoT Cyber Threat Landscape Report 2024 previewPrayukth K V
The IoT and OT threat landscape report has been prepared by the Threat Research Team at Sectrio using data from Sectrio, cyber threat intelligence farming facilities spread across over 85 cities around the world. In addition, Sectrio also runs AI-based advanced threat and payload engagement facilities that serve as sinks to attract and engage sophisticated threat actors, and newer malware including new variants and latent threats that are at an earlier stage of development.
The latest edition of the OT/ICS and IoT security Threat Landscape Report 2024 also covers:
State of global ICS asset and network exposure
Sectoral targets and attacks as well as the cost of ransom
Global APT activity, AI usage, actor and tactic profiles, and implications
Rise in volumes of AI-powered cyberattacks
Major cyber events in 2024
Malware and malicious payload trends
Cyberattack types and targets
Vulnerability exploit attempts on CVEs
Attacks on counties – USA
Expansion of bot farms – how, where, and why
In-depth analysis of the cyber threat landscape across North America, South America, Europe, APAC, and the Middle East
Why are attacks on smart factories rising?
Cyber risk predictions
Axis of attacks – Europe
Systemic attacks in the Middle East
Download the full report from here:
https://sectrio.com/resources/ot-threat-landscape-reports/sectrio-releases-ot-ics-and-iot-security-threat-landscape-report-2024/
Generative AI Deep Dive: Advancing from Proof of Concept to ProductionAggregage
Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
LF Energy Webinar: Electrical Grid Modelling and Simulation Through PowSyBl -...DanBrown980551
Do you want to learn how to model and simulate an electrical network from scratch in under an hour?
Then welcome to this PowSyBl workshop, hosted by Rte, the French Transmission System Operator (TSO)!
During the webinar, you will discover the PowSyBl ecosystem as well as handle and study an electrical network through an interactive Python notebook.
PowSyBl is an open source project hosted by LF Energy, which offers a comprehensive set of features for electrical grid modelling and simulation. Among other advanced features, PowSyBl provides:
- A fully editable and extendable library for grid component modelling;
- Visualization tools to display your network;
- Grid simulation tools, such as power flows, security analyses (with or without remedial actions) and sensitivity analyses;
The framework is mostly written in Java, with a Python binding so that Python developers can access PowSyBl functionalities as well.
What you will learn during the webinar:
- For beginners: discover PowSyBl's functionalities through a quick general presentation and the notebook, without needing any expert coding skills;
- For advanced developers: master the skills to efficiently apply PowSyBl functionalities to your real-world scenarios.
DevOps and Testing slides at DASA ConnectKari Kakkonen
My and Rik Marselis slides at 30.5.2024 DASA Connect conference. We discuss about what is testing, then what is agile testing and finally what is Testing in DevOps. Finally we had lovely workshop with the participants trying to find out different ways to think about quality and testing in different parts of the DevOps infinity loop.
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
Observability Concepts EVERY Developer Should Know -- DeveloperWeek Europe.pdfPaige Cruz
Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
Accelerate your Kubernetes clusters with Varnish CachingThijs Feryn
A presentation about the usage and availability of Varnish on Kubernetes. This talk explores the capabilities of Varnish caching and shows how to use the Varnish Helm chart to deploy it to Kubernetes.
This presentation was delivered at K8SUG Singapore. See https://feryn.eu/presentations/accelerate-your-kubernetes-clusters-with-varnish-caching-k8sug-singapore-28-2024 for more details.
Pushing the limits of ePRTC: 100ns holdover for 100 daysAdtran
At WSTS 2024, Alon Stern explored the topic of parametric holdover and explained how recent research findings can be implemented in real-world PNT networks to achieve 100 nanoseconds of accuracy for up to 100 days.
Welcome to the first live UiPath Community Day Dubai! Join us for this unique occasion to meet our local and global UiPath Community and leaders. You will get a full view of the MEA region's automation landscape and the AI Powered automation technology capabilities of UiPath. Also, hosted by our local partners Marc Ellis, you will enjoy a half-day packed with industry insights and automation peers networking.
📕 Curious on our agenda? Wait no more!
10:00 Welcome note - UiPath Community in Dubai
Lovely Sinha, UiPath Community Chapter Leader, UiPath MVPx3, Hyper-automation Consultant, First Abu Dhabi Bank
10:20 A UiPath cross-region MEA overview
Ashraf El Zarka, VP and Managing Director MEA, UiPath
10:35: Customer Success Journey
Deepthi Deepak, Head of Intelligent Automation CoE, First Abu Dhabi Bank
11:15 The UiPath approach to GenAI with our three principles: improve accuracy, supercharge productivity, and automate more
Boris Krumrey, Global VP, Automation Innovation, UiPath
12:15 To discover how Marc Ellis leverages tech-driven solutions in recruitment and managed services.
Brendan Lingam, Director of Sales and Business Development, Marc Ellis
Elevating Tactical DDD Patterns Through Object CalisthenicsDorra BARTAGUIZ
After immersing yourself in the blue book and its red counterpart, attending DDD-focused conferences, and applying tactical patterns, you're left with a crucial question: How do I ensure my design is effective? Tactical patterns within Domain-Driven Design (DDD) serve as guiding principles for creating clear and manageable domain models. However, achieving success with these patterns requires additional guidance. Interestingly, we've observed that a set of constraints initially designed for training purposes remarkably aligns with effective pattern implementation, offering a more ‘mechanical’ approach. Let's explore together how Object Calisthenics can elevate the design of your tactical DDD patterns, offering concrete help for those venturing into DDD for the first time!
Transcript: Selling digital books in 2024: Insights from industry leaders - T...BookNet Canada
The publishing industry has been selling digital audiobooks and ebooks for over a decade and has found its groove. What’s changed? What has stayed the same? Where do we go from here? Join a group of leading sales peers from across the industry for a conversation about the lessons learned since the popularization of digital books, best practices, digital book supply chain management, and more.
Link to video recording: https://bnctechforum.ca/sessions/selling-digital-books-in-2024-insights-from-industry-leaders/
Presented by BookNet Canada on May 28, 2024, with support from the Department of Canadian Heritage.
2. Project Estimation and scheduling
Outline:
Estimation overview
Detailed schedule/planning terminology and processes
3. Estimation
“The single most important task of a
project: setting realistic expectations.
Unrealistic expectations based on
inaccurate estimates are the single
largest cause of software failure.”
4. Why its important to you!
Program development of large software systems
normally experience 200-300%
cost overruns and a 100% schedule slip
15% of large projects deliver…NOTHING!
Key reasons…poor management and inaccurate
estimations of development cost and schedule
If not meeting schedules, developers often pay the
price!
5. The Problems
Predicting software cost
Predicting software schedule
Controlling software risk
Managing/tracking project as it progresses
6. Fundamental estimation
questions
How much effort is required to complete an activity?
How much calendar time is needed to complete an
activity?
What is the total cost of an activity?
Project estimation and scheduling are interleaved
management activities.
7. Software cost components
Hardware and software costs.
Travel and training costs.
Effort costs (the dominant factor in most
projects)
The salaries of engineers involved in the project;
Social and insurance costs.
Effort costs must take overheads into account
Costs of building, heating, lighting.
Costs of networking and communications.
Costs of shared facilities (e.g library, staff restaurant,
etc.).
8. Costing and pricing
Estimates are made to discover the cost, to the developer,
of producing a software system.
There is not a simple relationship between the
development cost and the price charged to the customer.
Broader organisational, economic, political and business
considerations influence the price charged.
9. Software pricing factors
Market
opportunity
A development organisation may quote a low price because it
wishes to move into a new segment of the software market.
Accepting a low profit on one project may give the opportunity
of more profit later. The experience gained may allow new
products to be developed.
Cost estimate
uncertainty
If an organisation is unsure of its cost estimate, it may increase
its price by some contingency over and above its normal profit.
Contractual terms A c ustomer may be willing to allow the developer to retain
ownership of the source code and reuse it in other projects. The
price charged may then be less than if the software source code
is handed over to the customer.
Requirements
volatility
If the requirements are likely to change, an organisation may
lower its price to win a contract. After the contract is awarded,
high prices can be charged for changes to the requirements.
Financial health Developers in financial difficulty may lower their price to gain
a contract. It is better to make a sm aller than normal profit or
break even than to go out of business.
10. Nature of Estimates
Man Months (or Person Months), defined as 152 man-
hours of direct-charged labor
Schedule in months (requirements complete to
acceptance)
Well-managed program
12. Expert judgment
One or more experts in both software development and
the application domain use their experience to predict
software costs. Process iterates until some consensus is
reached.
Advantages: Relatively cheap estimation method. Can be
accurate if experts have direct experience of similar
systems
Disadvantages: Very inaccurate if there are no experts!
13. Estimation by analogy
The cost of a project is computed by comparing the project
to a similar project in the same application domain
Advantages: May be accurate if project data available and
people/tools the same
Disadvantages: Impossible if no comparable project has
been tackled. Needs systematically maintained cost
database
14. Parkinson's Law
The project costs whatever resources are available
Advantages: No overspend
Disadvantages: System is usually unfinished
15. Cost Pricing to win
The project costs whatever the customer has to spend on
it
Advantages: You get the contract
Disadvantages: The probability that the customer gets the
system he or she wants is small. Costs do not accurately
reflect the work required.
How do you know what customer has?
Only a good strategy if you are willing to take a serious loss
to get a first customer, or if Delivery of a radically reduced
product is a real option.
16. Top-down and bottom-up estimation
Any of these approaches may be used top-down or
bottom-up.
Top-down
Start at the system level and assess the overall system
functionality and how this is delivered through sub-
systems.
Bottom-up
Start at the component level and estimate the effort
required for each component. Add these efforts to reach
a final estimate.
17. Top-down estimation
Usable without knowledge of the system architecture and
the components that might be part of the system.
Takes into account costs such as integration, configuration
management and documentation.
Can underestimate the cost of solving difficult low-level
technical problems.
18. Bottom-up estimation
Usable when the architecture of the system is known and
components identified.
This can be an accurate method if the system has been
designed in detail.
It may underestimate the costs of system level activities
such as integration and documentation.
19. Estimation methods
Each method has strengths and weaknesses.
Estimation should be based on several methods.
If these do not return approximately the same result,
then you have insufficient information available to make
an estimate.
Some action should be taken to find out more in order to
make more accurate estimates.
Pricing to win is sometimes the only applicable method.
20. Pricing to win
This approach may seem unethical and un-businesslike.
However, when detailed information is lacking it may be
the only appropriate strategy.
The project cost is agreed on the basis of an outline
proposal and the development is constrained by that
cost.
A detailed specification may be negotiated or an
evolutionary approach used for system development.
21. Algorithmic cost modeling
Cost is estimated as a mathematical function of product,
project and process attributes whose values are estimated
by project managers
The function is derived from a study of historical costing
data
Most commonly used product attribute for cost
estimation is LOC (code size)
Most models are basically similar but with different
attribute values
22. Criteria for a Good Model
Defined—clear what is estimated
Accurate
Objective—avoids subjective factors
Results understandable
Detailed
Stable—second order relationships
Right Scope
Easy to Use
Causal—future data not required
Parsimonious—everything present is important
23. A measure of the rate at which individual
engineers involved in software development
produce software and associated
documentation.
Not quality-oriented although quality assurance is a factor
in productivity assessment.
Essentially, we want to measure useful
functionality produced per time unit.
Software productivity
24. Size related measures based on some output from the
software process. This may be lines of delivered source
code, object code instructions, etc.
Function-related measures based on an estimate of the
functionality of the delivered software. Function-points
are the best known of this type of measure.
Productivity measures
25. Estimation techniques
There is no simple way to make an accurate estimate
of the effort required to develop a software system
Initial estimates are based on inadequate information in
a user requirements definition;
The software may run on unfamiliar computers or use
new technology;
The people in the project may be unknown.
Project cost estimates may be self-fulfilling
The estimate defines the budget and the product is
adjusted to meet the budget.
26. Changing technologies
Changing technologies may mean that previous
estimating experience does not carry over to new
systems
Distributed object systems rather than mainframe
systems;
Use of web services;
Use of ERP or database-centred systems;
Use of off-the-shelf software;
Development for and with reuse;
Development using scripting languages;
The use of CASE tools and program generators.
27. Compression Techniques
Shorten the overall duration of the project
Crashing
Looks at cost and schedule tradeoffs
Gain greatest compression with least cost
Add resources to critical path tasks
Limit or reduce requirements (scope)
Changing the sequence of tasks
Fast Tracking
Overlapping of phases, activities or tasks that would otherwise be
sequential
Involves some risk
May cause rework