Unit 6 software design and development pdf

Python is suitable. Python is open-source so people can freely use and distribute. Python can be easy to pick up whether you're a first time programmer or you're experienced with other languages. Python is not a heavy programming language like Java. It is very quick easy to create and update.

Python cuts down on the amount of code you need to execute a task. Python is expandable. An example of this is ForecastWatch. Python was chosen initially because it comes with many standard libraries useful in collecting, parsing, and storing data from the web. The threading library turned out to be very important in scaling ForecastWatch. Another use of Python is a program called The Molecular Modeling Toolkit MMTK which is an open source Python library for molecular modeling and simulation with a focus on biomolecular systems, written in a mixture of Python and C.

Python was chosen because it has a high-level interpreted language and a CPU-efficient compiled language which meets the requirements of rapid development and efficient execution.

This alone shows that Python can be used for many different tasks. Java is reliable to the extent of the programmer. If the coding is not efficient or not organised, it could be slow overall. Software such as eclipse that programs in Java helps you to spot errors in the code which you can easily fix.

Java is suitable for all machines running Java VM. It is designed so that Java can write once, run everywhere. Java is better suited for the internet and mobile devices, Android is written in Java. Java is one of the most popular choices of programming language so when a company is recruiting staff, it is more likely that the potential employee has Java experience.

Construct 2 is a reliable software for developing games. Construct 2 is suitable only for Windows OS. A simple definition of sequence is that it is a set of instructions that are in order, one instruction after another.

A flow chart is a diagram that uses shapes to visualise a process. Flow charts are useful because it is an effective way to visualise than to describe. Every flow chart has a start and an end. Perform one or more actions in sequence. Example in Python:. A selection is when a question is asked and depending on the answer, there may be more than one outcome.

This means that if I type a number in between 13 and 17 including 13 and 17 then it would say I am a teenager. Test a condition for true or false. On true. Take one or more actions in sequence. On false. Take none, one, or more actions in sequence.

An iteration is a loop that goes through a group of instructions when it gets executed repeatedly. The while statement performs a function and the code will run until that function is true depending on how you set up the loop.

Stop on false. Go back and test the condition again. The various data types allow the programmer to describe how the data is to be stored inside a program.

It also allows the programmer of the code to understand the maximum and minimum values that may be stored there. The Boolean data type for example, indicates how the data is to be used. A Boolean variable may have only one of two possible values, either true or false. An Integer may not contain fractional values, and so on and must only contain whole numbers. Both of these variables do not take a lot of bytes to store and is very easy to process.

Double take a large amount of data. It is similar than single type but it takes twice the memory storage and therefore it takes longer to process. This means that if you are using numbers that are below 7 digits, then using a double data type will be a waste of memory and inefficient.

Having a variety of data types is good to the programmer and can save up on memory and CPU usage of using a variety where necessary. Efficient storage and faster processing shows that a variety of data types is beneficial to the programmer. It also makes it easier to debug since a data type may be causing errors and since you used a variety of data types, this makes it easier to pin-point where the bug is. Need to hold only a single character but do not need other data types known as strings.

Can hold multiple characters without having to use char. This enables the programmer to use whole numbers between 0 and 9 in code. Double data type stores twice as much as single. Floating Point. Floating Points are numbers that have a decimal in them. It can be used in both hardware and software platform. In the hardware implementation method, it is composed of an adder, a multiplier, which is completely separate from the analog filter which is composed of resistors, inductors and capacitors.

Digital signal. Software Engineering Portfolio Source Code Management Each member of the team created github repositories to hold source code they had work on. Towards the end of the project. This was an example of. The managing director of the new organisation, Gary, is looking to enhance the basic computer system that he currently has. The organization produces small, intricate devices for testing pollution in the atmosphere. These devices collect scientific data that has to be processed.

Currently all the scientific data is downloaded and processed by hand. Gary needs to be able to set up records of suppliers so that he can keep track of the components, etc. Gary needs to know what programming languages there are available, what features these have and how they could be used in his environment. Get Access. Read More. Concepts Of A Software Engineering Organization Words 11 Pages behavior of an individual - Set of individuals working together as a team, within the context of a software engineering organization.

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