0
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
Worldwide regulation always uses FDM for separating different systems (TV, WLAN, radio, satellite …). Thus, all radio systems must modulate the digital signal onto a carrier frequency using analogue modulation. The most prominent system is the traditional radio: all music and voice use frequencies between, e.g., 10 Hz and 22 kHz. However, many different radio stations want to transmit at the same time.
Therefore, all the original signals (which use the same frequency range) must be modulated onto different carrier frequencies. Other motivations for digital modulation are antenna and medium characteristics. Important characteristics for digital modulation are spectral efficiency, power efficiency and robustness. Typical schemes are ASK, PSK, FSK.
²Communication difficulties
§Different disciplines use the same terminology to mean different things. This can lead to misunderstandings about what will be implemented.
²Differing assumptions
§Each discipline makes assumptions about what can and can't be done by other disciplines.
²Professional boundaries
§Each discipline tries to protect their professional boundaries and expertise and this affects their judgments on the system.
What are the size factors in software engineering?
1.Population:By taking a static count of Object Oriented Entities,exa:Classes and Operations.
2.Volume:The Population measured but are collected dynamically at given instance of time.(the poulation may be changed after multiple uses of diferent entities so its called Dynamically)
3.Length:A chain of interconnected design elements such as :inheritance tree with its length.
4.Functionality:indirect indication of the value delivered by aplication.(software size depends on user is required functionality of application or a Software
What is real time example of prototype model in software engineering?
maro aa....
4th Generation programming language
When you customer has a legitimate need bit is clueless about details/ requirements then develop a prototype as a first step.
What do you think are the major issues facing the software industry today?
The major issues faced by software industries today are: the software produce involves bugs. The project formed is not economical , is not obtained within time frame ad does not meet customer's expectations.
Explain the distinction between total and partial constraints?
Total constraints are those in which a table's existence requires the existence of an associated table in a particular defined relation between them.
whereas Partial constraints are involved with the tables in which presence of one table is partial for the associated table.
What is program relocation in system software?
- More than one program can share the memory and other resources of the machine.
- If we knew in advance , which programs would execute concurrently,we could assign address. When the programs were assembled so that they would fit together without overlap but practically this may not be possible.
- So it is desirable to load a program into the memory wherever there is a space for it.
- In such case actual starting address of the program is not known until load time.
What does the discipline of software engineering discuss?
to solve the software crisis where software is delivered late, with faults, and over budget. Software engineering aims to deliver fault free software, on time and within budget, meeting the requirements and needs of the client. The software is developed keeping in mind the future maintenance that is involved.
Is b.c.a a software engineering?
B.C.A is really in software developing in such the way's engineering
Where can you buy a dc voltmeter?
Auto parts store is the best place. Check the section where they have battery supplies.
How do you convert kN.m2 to a udl in kN.m?
"kN.m is a unit of bending moment.
kN/m is a unit of udl (uniformly distributed load)
as far as i know, there isn't kN.m2 but there is kN/m2
kN/m2 is a unit of pressure acting on an area.
Please check your question again."
I think you have misunderstood the question. The asker can correct me if i'm wrong but I think they mean, for example, that if you have a uniformly distributed load over an floor area in kN/m2 and you have say a beam running across this floor that you would like to run an analysis on, what would be the value of the load in kN/m on the beam?
would it simply be the same value in kN/m or would the conversion affect the value? I say this because I'd also like to know the answer :)
What is the difference between line organization and functional organization?
line orgnisation depands on level of work while functional is depands on work.
Advantages and disadvantages 4 and 8 connected flood fill algorithm?
Advantages :
- very simple
- efficiency and correctness
Disadvantages :
- requires getpixel() system call
- not efficient for large polygons - needs a large stack
- requires a seed point
Explain the operation of jfet with any time?
Figure 118: n-channel JFET structure.
When , there is little voltage drop along the length of the channel, and the depletion regions are parallel, Figure 119. As vGS is increased negatively, they eventually touch reducing iD to zero. The value of vGSat which this occurs is called the pinch-off voltage, Vp (or vGS(off)).
Figure: n-channel JFET structure for showing parallel depletion regions.
When , there is a voltage drop along the length of the channel, and the depletion regions are no longer parallel, but are closer together towards the drain, Figure 120. As vDS is increased, they will touch (pinch-off) towards the drain, and the drain current iD can increase no longer. At the threshold of pinch-off, vGS-vDS=Vp. As vDS is further increased, iD remains constant, and the JFET is in its current saturationregion, the normal mode of operation. (This constant current region is a characteristic feature of any transistor, FET or BJT.) The channel shape remains unchanged, with a small region of touch near the drain, and further increases in vDS occurs across this small region.
Figure: n-channel JFET structure for showing non-parallel depletion regions.
JFETS are high input impedance devices, and so (due to the reverse bias pn junctions).
How many spanning trees can be drawn with 5 labeled vertices?
No of spanning trees in a complete graph Kn is given by n^(n-2)
so for 5 labelled vertices no of spanning trees 125
How UltraSurf bypass the proxy?
WikiAnswers does not give information about illegal acts, such as bypassing a proxy server.
What is input -output bound program?
input output bound program is a program (or process in precise way), which spends most of time allocated to it for execution, on input/output devices and need very small CPU time for it.
A compiler translates anything that is a structured syntax, generally a computer language, into machine code or code that an interpreter will execute on a computer. Machine code actually executes on a machine, interpreted code is pure data for the execution engine of the interpreter.
Post compilers, sometimes called post processors, take the compiled code as input and make changes to the code to provide functionality beyond that of the original language.
Examples are:
- The original C++ language used a C compiler to process most of the file and a post compiler to add the object-oriented extensions
- Aspect Oriented Programming (AOP) functionality is generally added by a post compiler
What are the advantages of concurrent engineering?
Manufacturing Personnel are able to identify production capabilities and
capacities .They have thus the opportunity to inform the design group about the
suitability of certain materials on the flipsides the designer would know the
suitability of certain designs in aiding in cost reduction and quality improvement in
production/assembly process.
Early opportunities for design or procurement of critical tooling, some of which
might have long lead times.
early consideration of the Technical Feasibility of a particular design or a portion
of a design. Again this can avoid serious problems during production.
Which technology is remarkable in electronics field?
A What is remarkable is the search to implement solar components into cloth since our military uses an awfully amount of battery to run its communication equipment. That would be remarkable
