COMP2007-Detailed design

Question 0

Main tasks in detailed design

Answer 0

Complex prob solving

Spec and req complete enough to proceed.

Tough for large scal systems built from scratch w/o prev experience

Question 1

What is detailed design

Answer 1

Process of refining and expanding sw arch to enaure design is complete enough to implement.

Designers define internal structure and behaviour.

Question 2

Main tasks in detailed design

Answer 2

Understanding architecture & requirements

Creating detailed designs

Evaluating detailed designs

Documenting sw design

Monotoring and controlling implementation

Question 3

Design of sw components

Answer 3

Interface design

• internal
• external

GUI design

Internal component design

• structural
• behavioural

Data design

Question 4

Evaluating detailed design

Answer 4

Technical Review

Give enough time for review

Include tech expert + stakeholders

Include QA or testing tem

Focus on important; FR + NFR; how design helps meet them

Capture items to b actioned

Question 5

Do umenting detailed design

Answer 5

Mainly in sw des doc (SDD)

Used throughout dev; by programmers, testers, maintainers, sys integrators…

Question 6

Example of SDD

Answer 6

1.Intro
Date of issue
Context
Scope
Authorship
Change history
Summary
2. Sw arch
Overview
Stakeholders
Sys des concerns
Arch viewpoint 1,2,3
Design view 1,2,3
3. Detailed design
Overview
Component 1,2, des viewpoint 1,2
Design view 1,2
4. Glossary
5. References

Question 7

Object oriented design

Answer 7

Provide effective approach to cope with complexity of systems

Produce relatively fault-free sw

Deliver on time and within budget

Satisfy customer needs

Easy to modify sw