System integration qualification-difficulty-resource constraint
Advanced handout time management string talks 8 th problem (19 th problem).
● T and H, as system requirements analysts and software design engineers respectively, participate in the development of ①, ②, ③ and ④ software. T's work must occur before H begins work. The man-hours required for each software development job are shown in the table below.
①
②
③
④
demand analysis
7 days
3 days
5 days
6 days
software design
8 days
4 days
6 days
1 day
In the shortest software development cycle, compression alone (19) does not help to accelerate progress further.
(19) A. Demand analysis time B. Software design time of ①
C. Requirements analysis time of ③ D. Software design time of ③
Answer:
The best way to solve such problems is to use time-scale network diagrams.
12345678910111213141516171819202122232425 Demand Analysis ② ① ③ ④ software design ② ① ③ ④ 12345678910111213141516171819202122232425 Demand Analysis ② ③ ① ④ software design ② ③ ① ④
1. The shortest procedure should be Scheme 2.
2. If you compress the requirements analysis of 1, you can lead to an earlier design time for 1, thus shortening the construction period.
3. If you compress the software design of 1, you will also shorten the construction period.
4. If the requirements analysis of 3 is compressed, it will cause the requirements analysis of 1 to advance, thus answering the requirements described in 2.
5. There is no point in compressing software design time for 3 because software design for 1 must wait until its requirements analysis is complete before it can begin
