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Software Engineering
Software engineering is the process of applying well-developed techniques and practices in order to create new software products. Questions about everything from design patterns to requirements and specification belong here.
1,663 Questions
What elements of job interest you most?
Online security and directly interact to the customers via chat is new to me when I entered COMODO and in this 11months I really know very well about the needs of it and the interest is still on to know the different levels and updates of it.
Document - Document - Document. And, above all, say something to your supervisor - and document that as well.
Just don't waste unnecessary time documenting - that would be bad.
And it goes without saying, but I'll say it anyway, that you better be right - otherwise your credibility will suffer.
Which are the various 16-bit registers in Intel 8085?
The various 16-bit registers on the 8085 are BC, DE, HL, SP, PC.
Advantages of file organization?
File organization is the methodology which is applied to structured computer files. Files contain computer records which can be documents or information which is stored in a certain way for later retrieval.
What is software maintenance how is it related to software development?
One, viruses and malware can infiltrate your computer and corrupt and/or steal information from your computer from software.
Two, for various reasons, software may not be working correctly which you would've probably never noticed until you perform maintenance.
What is generalization in software engineering?
While solving a problem ,try to discover if it is an instance of a more general problem whose solution can be reused in other cases
carefully balance generality against performance and cost
sometimes a general problem is easier to solve than a special case
What are the applications of circular queue?
Priority queues can be found in operating systems for load-balancing and interrupt handling, network servers for bandwidth management, compression algorithms (such as Huffman encoding), Dijkstra's algorithm, Prim's algorithm and artificial intelligence systems.
couplings are used to join sections of long transmission shafts. couplings are also used to connect the shaft of a driving machine to the shaft of a separately built machine so as to give an effect of continuous shaft.
the general classification of couplings is as given under:
1. rigid coupling
2. flexible coupling
3.Camlock coupling
What is the different application of electronics?
The application and use of a range of electrical components are simple things such as light switches and power sockets, they are mainly used for turning lights on, and for giving an appliance power, some of these appliances may be every day home appliances, but some of the time appliances such as pillar drills and normal handheld drills, but they require a different power socket, because they require a larger electrical output.
An instruction book or program that takes users through a prescribed series of steps to learn a complex program is called a tutorial.
How do you know nonfunctional requirements efficiently at initial stages in software engineering?
Non-functional requirements that affect virtually all projects fit into one of the following categories:
- Performance
- Availability
- Capacity
- Continuity
- Security
Performance is a customer requirement and is generally obvious. The other 4 have your operations department as their customer. You can figure out all the less obvious non-functional requirements before you start coding by sitting down with your operations folks.
Essentially anything that the operational people need to install and configure the software, monitor it, manage capacity, and fail over are non-functional requirements.
All the above non-functional requirements are very difficult to add to a project if they are not engineered into a solution from the initial design of the architecture.
Difference between object oriented software engineering and software engineering?
Object Oriented Software Engineering (OOSE) is generally speaking a subset of Software Engineering (SE). OOSE includes all the SE Principles and it just specifies a focus on 'Object Oriented' architecture. It also implies the use of a programming language that supports object orientation (such as C++, Java, etc).
How many hours does a Computer Software Engineer and Systems Software Engineer works?
To become a certified software engineer in Canada you need anywhere from 4 years (bachelors of science) to 8+ years (PhD) of schooling.
What is difference between Spiral model and Prototype?
prototype model is suitable when user requirement are not very clear, while spiral model suitable for large projects whether customer requirement are not known in the beginning
Write a c plus plus program to sort the names in asecending order using array of objects?
#include<iostream>
#include<vector>
#include<string>
#include<algorithm>
int main()
{
std::vector<std::string> str_array = { "John", "Bill", "Alan", "Craig"};
std::sort (arr.begin(), arr.end());
}
What is the importance of modularity?
Modular programming is important in any programming paradigm including, but by no means limited to, procedural languages. A modular approach encourages taking one step at a time, promotes team work and collaboration and, most importantly, promotes testing on small and isolated units prior to integrating them into a large system.
What is comparison testing in software engineering?
Comparison Testing: Test Cases results are compared with the predicted results of the Test Oracle (Test Oracle: a mechanism to produce the predicted outcomes to compare with the actual outcomes of the software under test [from BS7925-1]) It's a bit of an old fashioned term, in that predicted results are usually included in the test case script. A test matrix with expected result values could be called a test oracle, or a predictive spreadsheet could fulfill that function. Note: Software Testing has developed many redundant/overlapping terminologies over the last decade. e.g. Black Box Testing aka Behavioral Testing aka Functional Testing Don't get too hung up with the terminology, as it varies from organization to organization.
What is sequence diagram in uml?
There are no. of diagrams in computer science .One of these diagrams is the sequence diagram. Sequence are used to represent a software system by a series of events or transaction in the system
What layer does the encapsulation method takes place?
If you want maintainability, flexibility, and extensibility (and I guess, you do), your design must include encapsulation. How do you do that?
• Keep instance variables protected (with an access modifier, mostly private).
• Make public accessor methods, and force calling code to use those methods rather than directly accessing the instance variable.
• For the methods, use the JavaBeans naming convention of set and get.
What is the purpose of Software Requirement Specification?
SRS is the main part of Documentation...
it contains all Steps to be done in Documentation of Software Development.
There are many steps like Market Survey, Analysis,Design, Functional and Structural Behaviour, etc...
Just see the Software Engineering Book , by Pressmen.
What you do after computer science and engineering?
The best course to study is the one that leads to your overall career goals and objectives. Thus, I would imagine you do not have anything specific at this time. So many individuals enroll in college programs without a specific goal in mind. As such, many become miserable in their work which is not good for them, or their employer. If you want to be successful in your work and life, carefully consider the following.
To be successful in your work, you must acquire a vision. A vision is a clearly articulated picture of the future you intend to create for yourself. In other words, it's a dream. However, if the dream does not have direction, it will always remain a dream and will never become a reality for you. That vision should create a passion within you, a love for what you do and the benefit it brings others as well as yourself. Make sure the vision is specific, measurable, attainable, realistic, and tangible. Let us look at this closer. When you believe you have chosen an appropriate career goal, look at it in SMART fashion as follows. * Specific - Make sure your career goal is very specific. For example, "I would like to be a teacher," is not specific. "I would like to be a high school biology teacher in New Jersey (USA) in an urban school by 2012" is. * Measurable - Make sure you can measure your progress. How will I know I am progressing in the right direction? This is where the development of short-term objectives comes in (discussed below). You will know you are on the right path as you accomplish each short -term objective. * Achievable - Is the goal achievable considering my current life situation and circumstances? * Realistic - Is what I want to do really realistic. For example, "I would like to be a middle weight boxing champion, and I am 63 years old." That is not realistic. * Tangible - What will I - specifically - have at the end? What will I be (exactly)? It must be very specific. Once you have that vision your path will become clear. Still, you will need a mentor, counselor, or coach who will be able to help you develop a road map embedded with short term objectives leading to your overall career overall goals and objectives. The achievement of short-term objectives will indicate you are moving in the correct direction, and will also give you energy and excitement to carry on towards your overall career goal. It will take some research, but you most likely have some ideas already. Follow them through, look at the nature of the field, the everyday routine, the required education, the salary, the occupational demand and the related fields. When a career sparks an interest, try to shadow an individual who is actually doing what you think you might like to do. You can pick up valuable information this way. Thus, the following. * Acquire the will to change circumstances. * Acquire the vision (dream). * Develop a road-map embedded with short-term objectives leading to your overall goal and objective. * Just do it and do not let go until it becomes a reality.
What is the use of 'pragma' in C language?
The #pragma directive is a compiler specific instruction. There are many things you can tell the compiler. For instance, the #pragma pack n directive tells the compiler to override the /Zpn command line argument and to use a new default structure packing value. To see all of the possible #pragma directives, go to online help, and index by #pragma directives, C/C++. You probably only need to type in #pra and then click on C/C++ to get this far.
How do you differentiate between Harvard and Von Neumann architecture?
There are basically two types of digital computer architectures. The first one is called Von Neumann architecture and later Harvard architecture was adopted for designing digital computers.
Von Neumann Architecture:
- It is named after the mathematician and early computer scientist John Von Neumann.
- The computer has single storage system(memory) for storing data as well as program to be executed.
- Processor needs two clock cycles to complete an instruction.Pipelining the instructions is not possible with this architecture.
- In the first clock cycle the processor gets the instruction from memory and decodes it. In the next clock cycle the required data is taken from memory. For each instruction this cycle repeats and hence needs two cycles to complete an instruction.
- This is a relatively older architecture and was replaced by Harvard architecture.
Harvard Architecture:
- The name is originated from "Harvard Mark I" a relay based old computer.
- The computer has two separate memories for storing data and program.
- Processor can complete an instruction in one cycle if appropriate pipelining strategies are implemented.
- In the first stage of pipeline the instruction to be executed can be taken from program memory.In the second stage of pipeline data is taken from the data memory using the decoded instruction or address.
- Most of the modern computing architectures are based on Harvard architecture.But the number of stages in the pipeline varies from system to system.
