The document discusses software architecture and how to design architectures that are suitable for the future. It notes that software must be adaptable to changing business, technical and environmental factors. Future-proof architectures need to be designed in a way that facilitates changes to requirements over time, both functional and technical. However, architectures should not try to anticipate all future changes - they should be built simply and divided into independent modules to support flexibility. The document emphasizes that software architecture is important but must serve the goal of enabling application development based on given requirements.

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© itemis AG
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Zukunftsfähige SW-Architekturen
Dr. Georg Pietrek
26.11.2014 Modernisierung von (Alt-) Anwendungen & zukunftsfähige Softwarearchitekturen

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© itemis AG
Agenda
§ SW-Architektur – was ist das?
§ Themen – was bewegt uns jetzt und in
Zukunft?
§ Zukunftsfähige SW-Architekturen – wie sehen
die aus?
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© itemis AG
SW-Architektur
Was ist das?
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§ Klärung des Begriffs „Software-Architektur“
§ Die Architektur des Systems als faktische Eigenschaft
(beschreibbar in einer Architektur-Dokumentation)
§ Jedes SW-System, hat eine Architektur
§ Gut oder schlecht
(wie bewerten wir das?)
§ Geplant oder ungeplant
§ Die Tätigkeit, eine Software-Architektur zu entwickeln
§ Nicht jedes SW-Projekt kennt diese Tätigkeit (leider)

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© itemis AG
SW-Architektur
Was ist das?
4
• Bewertung von Software-Architektur
• Architektur ist kein Selbstzweck
• Architektur dient der Anwendungsentwicklung
• Architektur richtet sich nach den Anforderungen

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© itemis AG
SW-Architektur
Was ist das?
5

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© itemis AG
SW-Architektur
Was ist das?
6

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© itemis AG
Software modernisation
Starting point – old system
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© itemis AG
Software modernisation
Scenario 5
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Phase 1

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© itemis AG
Software modernisation
Scenario 5
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Phase 2

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© itemis AG
Software modernisation
Scenario 5
10
Phase 3

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© itemis AG
Software modernisation
Scenario 5
11
Phase 3

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© itemis AG
Software modernisation
Scenario 5
12
New System

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© itemis AG
Themen
Was bewegt uns jetzt und in Zukunft?
13
§ Cloud
§ Big Data
§ NoSQL
§ In Memory Databases
§ Mobile
§ UI Technologien
§ Funktionale Programmierung
§ ...

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© itemis AG
Why needs software constant maintenance?
The environment is constantly changing
14
§ New or changed ...
§ ... business requirements
§ ... technical requirements
§ ... constraints

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
15
§ Anpassungsfähigkeit
§ nicht auf Vorrat bauen ...
§ ... aber so bauen, dass Änderungen möglich sind
§ fachlich: neue, geänderte Anforderungen
§ technisch: neue Technik, geänderte Umgebungen
§ Aber wie macht man das?

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
16
§ Architektur-Grundregeln
§ Keep it simple!
§ Teile und herrsche!

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
17
§ Systeme werden aus unterschiedlichsten Bestandteilen zusammengesetzt
§ Eigenentwicklung / zugeliefert
§ unterschiedliche Technik
§ Gibt es die Standard-Architektur?
§ Integration ist wichtig
§ Bestandteile des Systems
§ Schnittstellen zu anderen Systemen
§ Braucht jeder einen ESB?

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© itemis AG
SW-Architektur
Was ist das?
18

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
19

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
20

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
21

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© itemis AG
Zukunftsfähige SW-Architekturen
Wie sehen die aus?
22

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© itemis AG
itemis AG | georg.pietrek@itemis.de | www.itemis.de
Dr. Georg Pietrek
Tel.: +49 231 9860 216
Mobil: +49 151 10860459
georg.pietrek@itemis.de