Shulou(Shulou.com)06/03 Report--

1 extended reading

The following two articles also illustrate the difficulty of software estimation:

10 crimes estimated by Steve McConnell software:

Http://www.ewh.ieee.org/r5/central_texas/austin_cs/presentations/2004.08.26.pdf

Quora Select: why the software development cycle is always 2-3 times the estimate

Http://jandan.net/2013/07/16/quora-software-development.html

2 the object of user survey

We have talked about so much user research, many people assume that the evaluation of software is the purchase of software, that is, the use of software, but not necessarily. Look at the following example:

1. You want to write a software for middle school students to learn English. Who are you looking for to do user research?

Middle school students-end users.

Parents-they are people who have to pay, they don't use software every day, some people don't speak English very well, but they also have needs.

School teachers-they are people with great influence, they may lay down a rule, our class will use so-and-so software!

two。 If you want to write an enterprise management software, who are you going to find to do user research? Please list the types of users you think are important and the methods of user research that you think are appropriate.

3 the arithmetic problem of development speed

In a software project, the software team expects 30 hours of progress per day (that is, 30 hours of work completed). When half of the total workload of the project was completed, it was found that the actual progress was 15 hours / day, and asked: how much progress will the team have to make in the remaining time? to restore the average progress of the entire project to 30 hours a day at the end of the project?

4. A goal / determination / estimated story: a project was going smoothly and the big leader wanted all the staff to leave work for an one-day mobilization meeting. at the end of the meeting, the leader enthusiastically asked everyone: do you have confidence in completing the project on schedule? At this time, the project manager stood up and said, "We could have finished it on schedule, but now we have an one-day meeting and we have postponed it for one day."

Do you think such a project manager is good or bad?

Online comments:

First of all, an one-day extension is also called an extension. Secondly, I can't believe that the progress card is so accurate without buffer time. I guess the project would have to be postponed.

In most cases, it is of little value for the project to be completed on time, unless it is to give the team some periodic incentive.

5. Other references:

The two causes of runaways that stand head and shoulders above all others are poor (usually optimistic) estimation and unstable requirements.

Glass, Robert L. (2002-10-28). Facts and Fallacies of Software Engineering (Kindle Locations 736737). Pearson Education. Kindle Edition.

Most software estimates are made either by upper management or by marketing, not by the people who will build the software or their managers. Estimation is, therefore, done by the wrong people.

Glass, Robert L. (2002-10-28). Facts and Fallacies of Software Engineering (Kindle Locations 853,854) Pearson Education. Kindle Edition.

6. Specific project activities:

Http://www.cnblogs.com/xinz/p/3308608.html

7. See how the sewing machine uncle meets the needs of users.

Http://weibo.com/2694810701/BpI8Km1UW#_rnd1412244033760

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