Showing posts with label gaming. Show all posts
Showing posts with label gaming. Show all posts

Saturday, March 30, 2013

Simple Steps to make your iPhone 5 Battery Last Longer


Increase iPhone Battery to increase productivity

Though the iPhone5 is one of the leading Smartphones in the market today, apple fans’ biggest concern has been its battery life despite its having a bigger battery than its predecessor iPhone4S. For instance, if you are on a long drive without a backup charger then a drained iPhone5 is the biggest headache. Nevertheless, there are multiple ways to make your battery last longer. Though some of the steps might look difficult to do when navigating through the settings of your iphone, the returns of following these simple steps are fabulous.
Packed up with so many fabulous features, it is hard to believe that the iphone5 has  any issues. But the reality is that the battery  life is actually one of the biggest negative points. Here are some simple ways by which you can increase your battery’s life:
  • Kill Background Apps
Most of us open multiple apps but forget to close them. Most users actually are not even aware that the apps are not closed.  These apps run in the background and consume the battery. Hence we need to kill them. Just double press the Home button so that you can open the app switcher. Once the icons are visible, hold your finger on any of the icons until they start jiggling. A little X(close button) will appear on all the apps. Just click on the X to close all the apps manually.
  • Limit usage of Location Services
Most of the apps when installed use location services to customize the services/offering based on locations. Though this feature looks impressive, this actually reduces battery life. You can enable or disable the location services by going to Settings > Privacy > Location Services, where you can see a list of all apps from your iphone5 that are using the location feature. Most of the features are turned on by default or you should have chosen ‘yes’ when you installed the apps. A power-hungry chip can reduce battery life unless location services are turned off.
  • Email Fetching
One of the most common things that we do with a Smartphone is use it to browse our emails. The faster services provided by network providers makes accessing email at any location a very (much delete) pleasant experience. But while emails are getting loaded they do consume the battery. It is called Push Services and this Push Email can impact your battery life. If you don't rely on Push Email, then you can turn it off by visiting Settings > Mail, Contacts, Calendars > Fetch New Data, and turn  off "Push." Email can  easily be fetched from non-push services.
When not using the applications just turn them off. It can help you preserve the battery life because your device will not be constantly be searching for those applications.  WiFi hotspots or paired Bluetooth devices are common applications that consume the battery. You can Turn off WiFi by visiting Settings > Wi-Fi and flip the Switch to "Off"; and, Bluetooth by visiting Settings > Bluetooth, and flipping the switch to "Off."
  • Reduce the Brightness
Your phone brightness can also eat up your phone battery. Hence go to Settings > Brightness & Wallpaper, and choose the lowest brightness that you are most comfortable with.
  • Connection while no coverage areas
Your Phone always tries to maintain a connection with the cellular tower and consume power even in low- or no-coverage areas. Hence you can turn the device to Airplane Mode which can increase battery life in these situations though you cannot receive  calls even if tower signal comes and goes. To turn on Airplane Mode, go to Settings and set Airplane Mode to On.
The above  experiences have been proved to be effective by multiple iphone users. So try these options and save your iphone5 battery.

Thursday, August 2, 2012

Use Case Diagram

A Use Case Diagram (UCD) is used to describe the functionality of a system or describe a set of actions that some system can perform with one or more external users of the system. That is, rather than representing the details of individual features of your system, UCDs depicts pictorially all the available functionality. Each action provides some observable and valuable result to the actors of the system.

However the UCDs cannot replace sequence diagrams or flow charts because they are fundamentally different. UCD cannot be used

-          When you wish to represent a sequence of steps needed to complete a task or when a error occurs. Use Sequence diagrams.

-          When flow should be depicted in a linear time based way. Use Flow charts.

Use case diagrams are used to specify:

-          External requirements on a subject, required usages of a system - to capture what a system under construction is supposed to do;

-          the functionality offered by a subject – what system can do;

-          Requirements the specified subject poses on its environment - by defining how environment should interact with the subject so that it will be able to perform its services.

UCDs have only 4 major elements

  1. The actor - specifies a role played by an external entity that interacts with the system, a human user of the designed system. All actors must have names according to the assumed role. Customer, Student, Passenger etc are sample actor names

  2. The system – Describe a system/subject that does some business process. Examples of systems:  Web Site, Payment System etc

  3. The use cases - Specifies behavior of a system by describing a set of sequences of actions performed by the system to yield an observable result of some value to actors of the system. Examples of use case names are Place Order, Update Subscription, Transfer Funds etc

  4. The lines - Represent relationships between different elements of UCD.

Pictorial representation of Major elements of the use case diagram is:

Image Credit : Google


Once you have studied the main components of UCD, now it is time to build one UCD. The initial step is to identify all of the high-level behavior of the system you wish to depict through the UCD. Once you have described details in a high-level way you should get an idea of how to draw UCD. At every stage of development, the UCD will depict a complete description of the system's functionality. It may lack some detail, but it should cover most features of system. And if functionality or behavior is added or deleted over the life of your project, the scope of the change you need to make is proportional to both the scope of the change in the system itself, and the maturity of your model. You can continue to add detail by decomposing your use cases into more use cases which are used by the top-level use cases. Below is how a sample Use Case and Flow Chart will look for driving a car.



Image Credit : Google




Image Credit : Google


To Conclude UCD are best diagrams when you wish to depicts behavior of the system or structural relationships.





Reference

http://www.uml-diagrams.org/use-case-diagrams.html

http://www.andrew.cmu.edu/course/90-754/umlucdfaq.html