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52
votes
5answers
39k views

R vs Python for data analysis [closed]

I have been programming for about a year and I am really interested in data analysis and machine learning. I am taking part in a couple of online courses and am reading a couple of books. Everything ...
35
votes
5answers
2k views

How do you get past the Analysis to Paralysis when working on a new project?

I've been struggling with how to get my project going. I've got an old software package that is in need of desparate rewrite. I haven't compiled the source code since 2004. It still sells, it's stable ...
22
votes
4answers
4k views

How prototypal inheritance is practically different from classical inheritance?

Inheritance, Polymorphism, and Encapsulation are the three most distinct, important features of OOP, and from them, inheritance has a high usage statistics these days. I'm learning JavaScript, and ...
19
votes
3answers
3k views

How to become good at object-oriented analysis and design (OOAD)?

Becoming a good analyzer and designer can greatly benefit a developer. But there are definitely obstacles for this. Not everybody is interested in OOAD, and not every person who is interested, knows ...
11
votes
6answers
2k views

What is the acceptable error margin when estimating a project duration?

The company where I work is aiming to have a 10% maximum error margin.They expect analysts to not miss the estimate by more or less than 10%. I don't know what to think about it, since I got nothing ...
10
votes
14answers
1k views

How do you go about understanding others' code?

What do you do to understand some code that you didn't write? Or code that you wrote long time ago and don't remember what it does anymore. Do you have some technique that you go about? Do you ...
10
votes
2answers
237 views

How analysis is different from design?

I'm sure you all have heard managers saying that "we need an analyzer", or "we need a designer". While I'm a .NET developer, I hardly can differentiate an analyzer from a designer (not web designer or ...
8
votes
9answers
499 views

Should an analysis be technology-agnostic?

I had an argument yesterday with one of my colleagues. He (a business-analyst, previously a programmer) thinks that he should be aware of the technology used to implement the system, so he can take ...
8
votes
8answers
459 views

Interpreting Others' Source Code

Note: I am aware of this question. This question is a bit more specific and in-depth, however, focusing on reading the actual code rather than debugging it or asking the author. As a student in an ...
8
votes
2answers
287 views

How many copies are needed to enlarge an array?

I am reading an analysis on dynamic arrays (from the Skiena's algorithm manual). I.e. when we have an array structure and each time we are out of space we allocate a new array of double the size of ...
7
votes
5answers
2k views

Theta notation on constant time. Why we use the 1?

In asymptotic notation when it is stated that if the problem size is small enough (e.g. n<c for some constant c) the solution takes constant time and is writen as Theta(1). Why we write 1 inside ...
7
votes
5answers
1k views

Technique to Solve Hard Programming logic

I have heard about many techniques which are used by developer/software manager to solve hard programming logic or to create flow of an application and this flow will be implemented by developers to ...
6
votes
5answers
314 views

How to model the components of a non Information System?

I am working on a kernel-related project (specifically related to the TCP/IP stack of the kernel). I need to build some models to describe the functionality and components of my system. Initially I ...
6
votes
5answers
456 views

How much information can a user reasonably process from a UI?

As an example, say there's an interface that contains a table/grid of information that is periodically updated. The table is meant to represent an event that has happened, perhaps the date and time ...
6
votes
1answer
605 views

Space complexity of Iterative Deepening DFS

We read on Wikipedia > Iterative deepening depth-first search that The space complexity of IDDFS is O(bd), where b is the branching factor and d is the depth of shallowest goal. Wikipedia also ...
6
votes
3answers
562 views

Development methodology for single web developer? [duplicate]

Possible Duplicate: Design and Development Methodologies for the single developer I'm a web developer who mostly works with the LAMP stack when it comes to my own projects. Most of the time ...
6
votes
1answer
165 views

.NET BCL Change Analysis - Uses Beyond Sating Curiosity

This is part of a series of questions which focuses on the Abstraction Project, which aims to abstract the concepts used in language design in the form of a framework. There is a sister project to ...
5
votes
2answers
4k views

What is the difference between requirements Elicitation and Requirements Analysis in the real world?

My question aim to draw a fine line between Requirements Elicitation and Requirements Analysis. What is the difference between these two?
5
votes
3answers
2k views

Question about Cyclomatic Complexity

I am new to static analysis of code. My application has a Cyclomatic complexity of 17,754 lines of code. The application itself is only 37,672 lines of code. Is it valid to say that the complexity is ...
5
votes
5answers
1k views

Is programming experience useful to become a Business Analyst? [closed]

Is programming experience important to become a BA? I have an opportunity to switch from programming to BA in IT, but I am not sure what to do. In the future, I want to proceed as BA only. Does ...
5
votes
2answers
895 views

Data structure for pattern matching

Let's say you have an input file with many entries like these: date, ticker, open, high, low, close, <and some other values> And you want to execute a pattern matching routine on the ...
4
votes
4answers
2k views

Technical analysis in software development

What should a good technical analysis include in software development? Why do we need a technical analysis? why can't we just start coding? I got this question from a customer who won't pay for the ...
4
votes
4answers
898 views

Where to start a software Analysis & Designing?

I am starting a big database-oriented software project to develop. I have full picture of the software in mind. I need to do the designing using UML. As there are various tools in UML such as usecase, ...
4
votes
3answers
549 views

Writing use cases for a rather complex scenario

I'm trying to improve my use-case writing skills but I'm stuck on a certain scenario. The idea is that there are a bunch of entries in a task list (some kind of todo list). Now the user wishes to ...
4
votes
1answer
211 views

Agile Development & Interaction with Developers

I have read in few blogs that as part of agile development , the product owner closely interact with developers to state their requirements and come up with a solution. However in case of a large ...
4
votes
2answers
1k views

Requirement gathering in an agile methodology

In the great book User Stories Applied the author specified the following process for trawling requirements in the form of user stories: Create user roles (personas) --> brainstorm user goals for ...
4
votes
1answer
151 views

What criteria could be used to rank popular blog posts?

I am building a service that finds popular posts from several blogs. What criteria could I use to define what the most popular posts are? For example, I track Facebook and Twitter share counts for ...
3
votes
6answers
258 views

Should sales staff interfere in application analysis and design?

We're working on a kind of CMS, a fast, hosted, centralized website builder like Weebly. We also use Scrum development model. But there seems to be some problems here. Our sales manager always come to ...
3
votes
2answers
243 views

Any requirements tool recommendation?

BAs in my company use Word, Excel and Visio for requirements definition reasonably well. What are the key advantages and disadvantages of using a requirements tool instead?
3
votes
4answers
489 views

Is Usage Tracking esoteric or state of the art?

There are several products for tracking the usage of your application. I know at least 10 offers. They tell you which features were used more often than others. Thus, you can identify features that ...
3
votes
2answers
779 views

Wolfram is out, any alternatives? Or how to go custom?

We were originally planning on using wolfram alpha api for a new project but unfortunately the cost was entirely way to high for what we were using it for. Essentially what we were doing is ...
3
votes
2answers
133 views

how do you manage application performance reviews

I have been trying to figure out ways to effectively do performance reviews before an install happens for all releases done by our team. Do you usually make this a part of code review process or do ...
3
votes
2answers
602 views

can an object in a sequence diagram send a message call to the user?

I need to make a sequence diagram and I'm not sure how to represent user input. Is it correct to have a message be sent from an object to the user asking for user input or should all objects be ...
3
votes
2answers
151 views

First step in analysing a proposed system [duplicate]

A client asked us to automate his offline paper-based processes. He sent us a copy of the physical forms that he uses. Our team met and discussed how the navigation should be, what major components ...
3
votes
2answers
288 views

Available options for classifying words in text?

I am researching ways to classify words in text and I'm wondering what options there are and which are best suited to this job. I'm mostly interested in keywords which are most often nouns. So far I ...
2
votes
13answers
519 views

How much should I worry about modeling/analyzing a web application?

I'm developing kind of a modern web application - scalable, robust and fast. I need to develop it as fast as I can. How much should I worry about the analysis phase or writing UML diagrams or ER ...
2
votes
2answers
106 views

Storing and analyzing rock climbing difficulty

I'm working on a WordPress plugin to manage rock climbing data, and I need to think of a way to store rock climbing grades from all of the different systems in a unified way. There are many different ...
2
votes
4answers
237 views

How to effectively define requirements on a complex project requiring collaboration from many people with less than great personal relationship

I am working on a project that is basically a rewrite of an old batch based system that now should run online. The old system is complex and poorly documented and best source of information are people ...
2
votes
1answer
92 views

Avoiding Packages with High Efferent Coupling

I use java language to develop android application, after static analysis, the tool warns about high efferent coupling. What is the reason of this warning? Is it about AComModel which is extended by ...
2
votes
2answers
196 views

Saving all hits to a web app

Are there standard approaches to persisting data for every hit that a web app receives? This would be for analytics purposes (as a better alternative to log mining down the road). Seems like Redis ...
2
votes
2answers
317 views

Books or help on OO Analysis

I have this course where we learn about the domain model, use cases, contracts and eventually leap into class diagrams and sequence diagrams to define good software classes. I just had an exam and I ...
2
votes
1answer
310 views

Use case decomposition for class registration system

I am currently working on refactoring a summer camp registration system to include some new features and will also be using it as the basis for a new after-school class registration system. For this ...
2
votes
3answers
466 views

economic viability analysis for an iPhone app

I have to do an economic viability analysis for an iPhone app and I do not know if you could help me in some questions like link text: How can I estimating an iPhone application development costs? ...
2
votes
1answer
177 views

How do I debug a cluster running Microsoft server 2003?

I'm sole developer of a complex critical software system, written in Visual C++ 2005. It's deployed on a classical Microsoft cluster scenario (active/passive), that has Windows Server 2003 R2. If a ...
2
votes
0answers
371 views

Clustering Strings on the basis of Common Substrings

I have around 10000+ strings and have to identify and group all the strings which looks similar(I base the similarity on the number of common words between any two give strings). The more number of ...
2
votes
2answers
107 views

Looking for session/event analytics analysis tool [closed]

I have data that is basically made up of a set of sessions filled with events. For example: Session1 - [Event1] [Event2] [Event3]...[Event64] Session2 - [Event1] [Event3] [Event4]...[Event64] The ...
1
vote
3answers
195 views

What design and planning techniques are the most suitable for individual projects?

This summer I'd like to develop a number of applications, all of them relatively small, yet risky -they're complex, I'm inexperienced-. I'm gonna work on my own because my classmates or other IT ...
1
vote
3answers
100 views

Starting with BI / Data Analysis [closed]

We have a bunch of data about our customers and we'd like to learn more about it. Writing queries to pull data out is not a problem, and we're doing that right now, but we'd like to take it to the ...
1
vote
1answer
141 views

Algorithm analysis refresher help

I haven't touched algorithm complexity stuff in quite a while, so I am trying to do a refresher. I am trying to figure out the number of steps in the following for loop. for(i = 0; i < n; ...
1
vote
1answer
543 views

Is there a real difference between dynamic analysis and testing?

Often testing is regarded as a dynamic analysis of a software. Yet while writing my thesis, the reviewer noted to me that dynamic analysis is about analyzing the program behind the scenes - e.g. ...