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This newest book from Watts Humphrey is a hands-on introduction to basic disciplines of software engineering. Designed as a workbook companion to any introductory programming or software-engineering text, Humphrey provides here the practical means to integrate his highly regarded Personal Software Process (PSP) into college and university curricula. The book may also be adapted for use in industrial training or for self-improvement by practicing software engineers.
Applying the book's exercises to their course assignments, students learn both to manage their time effectively and to monitor the quality of their work, good practices they will need to be successful in their future careers. The book is supported by its own electronic supplement, which includes spreadsheets for data entry and analysis. A complete instructor's package is also available.
By mastering PSP techniques early in their studies, students can avoid--or overcome--the popular "hacker" ethic that leads to so many bad habits. Employers will appreciate new hires prepared to do competent professional work without, as now is common, expensive retraining and years of experience.
From the Back Cover
This newest book from Watts Humphrey is a hands-on introduction to basic disciplines of software engineering. Designed as a workbook companion to any introductory programming or software-engineering text, Humphrey provides here the practical means to integrate his highly regarded Personal Software Process (PSP) into college and university curricula. The book may also be adapted for use in industrial training or for self-improvement by practicing software engineers.
Applying the book's exercises to their course assignments, students learn both to manage their time effectively and to monitor the quality of their work, good practices they will need to be successful in their future careers. The book is supported by its own electronic supplement, which includes spreadsheets for data entry and analysis. A complete instructor's package is also available.
By mastering PSP techniques early in their studies, students can avoid--or overcome--the popular "hacker" ethic that leads to so many bad habits. Employers will appreciate new hires prepared to do competent professional work without, as now is common, expensive retraining and years of experience.
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Customer Reviews
For the working programmer, especially in today's visual integrated environment, applying alot of the material is hard. The Lines of Code (LOC) measurement used is not considered the best judge of program complexity, plus in a visual environment where one can spend days laying out forms or reports that generate no lines of code can skew numbers. I understand its use: It is easy to explain and calculate for beginners, but is lacking for working programmers.
There is also an emphasis on distinct phases of program development, particularly the compile and test phase. For those of us who work in a visual environment (be it C, Pascal, or Basic) the phases blur together and tracking time spent on compile is negligable. Also not mentioned is should intentional syntax errors (such as going to copy a variable name) that automatic syntax checking catches be tracked?
The extreme academic bend of the book also begins to annoy after awhile. The use of "small programs" to work with on the job is rare. Tracking number of lines changed can be tough in large programs, even with source code controls in place. The base code review checklist is extremely simple (intentionally) and aimed at C or Ada programmers, leaving other languages hanging.
One last annoyance: Many of the forms talked about are not available to print or use in a spreadsheet. The one form most working programmers would use, the time log, is the most glaring example.
If you meet either of the requirements in the first paragraph, read the book. You will find something of use. Just about anyone in the field would benefit from chapters 3 and 7 (in particular) since we all tend to have problems estimating how much time things will take.
Lastly, most of the data used to show how things improved after using the Personal Software Process was from 2 groups, one "real world" company and a group of students. Both groups only had around 15 people. Even combining both groups a sample of 30 programmers is not overwelming evidence. A larger sample is needed.
Although only 3 years old, to me the book needs to be updated. Larger samples for the improvement examples, handling non-code artificts such as forms and program documentation, and making sure that all of the forms are available on standard size paper (8.5x11 or A4) would be a good starting place.
The initial premise of the book is that of a college student who must plan their time in order to complete all that needs to be done. Of course, the point is to emphasize that planning major projects, such as your life, requires that you set reasonable goals that are compatible with everything else that you want to do. Once the goals are set, the next step is to order your time so that all activities are allotted an appropriate time slot.
The second segment deals with tracking a software development process from start to end. It is all about time, how much you expect to spend on each section and how much was actually spent. The goal is to track now so that your future projections are more accurate. With so many charts and entries, there is nothing that can be measured that does not appear somewhere in a chart.
While I am a proponent of measuring and recording the significant characteristics of any project, one must take care to avoid an over reliance on the act of measuring. Even though software development is a team game, it is still very much an individual effort. There is a great deal of room for the occasional "brilliant stroke", where someone has a flash of insight into a problem that solves it in a new, unique and more efficient manner. The best programmers are still in many ways artists and regimentation can stifle their creative sides.
The PSP is also different from the agile processes, which reduce the software planning cycle to a few weeks rather than a longer term. Very little is also written down in agile processes, and planning to the minute is considered counterproductive. However, even if you are a firm believer in the agile approach, reading this book will be of value. When you write down very little, you must make sure that what is written down is important, so by studying the PSP, you have a better chance of recording what is critical.
Humphrey is on one end of the software development spectrum, in that he sets down a process with extensive planning. Agile processes are on the other end, where there is a minimum of planning. Most development groups will find their best location somewhere in the middle. Since the best way to find your location is to study the extremes, all software developers will find value in this book.
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