ZigBee?

'ZigBee' is a protocol which is developed to send and receive small amounts of data in between hostile Radio Frequency environments. ZigBee protocol is suitable and designed to be used by small, low power embeded devices such as sensors to transfer small amounts of data. 

Following are the advantages of using Zig Bee protocol.

1. Standard based
2. Low cost devices available
3. Has the ability to use globally
4. Reliable and self healing
5. Supports large number of nodes (up to 65,000 nodes per network)
6. Easy to deploy
7. provides long battery life.
8. Secure (128 bit AES encription)
9. Support multiple network topologies (ex: mesh, point to point, point to multipoint)
10. Collision avoidance, retries and acknowledgements is available
11. Low latency

A ZigBee network has the following components;

• ZigBee coordinator  - This is responsible for initializing managing and maintaining the network.
• ZigBee router - This is responsible for controlling the message routing between the nodes.
• ZigBee end device - This is the end point of a ZigBee network.

Image source : http://www.sena.com/products/industrial_zigbee/zigbee_summary.php

ZigBee can be utilized many business applications. Some of the examples can be mentioned as home automation, industrial plant monitoring and vehicle traffic monitoring etc.

Following is a figure which well describes the functionality of a Zig Bee network.

Image Source : http://www.sensor-networks.org/index.php?page=1129929946

What is the importance of a Document Map?

This is how we add a document map to our word document in word 2007.

Go to 'View' ribbon. Navigate to 'Show/Hide' panel and select 'Document Map'.    

So the document map will then be available in a left side panel of our word document.

In document map we have two basic views. Those are the

• Document Map &
• Thumbnail View  

The 'Document Map' will list down all the headings and sub headings in the left panel and the view can also be changed according to preferences. And the thumbnail view will provide an image of each page of our document in the left panel.

Sometimes we wonder why we need a document map which is like another TOC when we already have a TOC in our document.

But which is important in document maps is that it provides a guidance to our word document.

A document map will be really necessary when we are writing  huge word documents and need to add things to different sections and update separate sections in our word document time to time. So then we don't need to travel pages one by one or travel to TOC to find the section each and every time when we need an update.  

Styles in Word need to be utilized in order to obtain the real usage of a document map. Otherwise the document map will look as another copy of our word document.

And the other most vital usage from the document map is that, we can find some formatting errors in our document very easily. For an example lets say that we have applied styles to our document. And the heading styles appear in our document map. Suddenly after updating things in the document, lets say we see normal texts, numbering and captions appearing in the document map. That means our formatting has changed due to some updates in the document. So prior to any DISASTROUS situation, we are able to find that our document formatting has changed . Otherwise what we will encounter issues in our updated TOC.

So we can always use a document map to do our documenting in an easier way.

Adding Cross References (In MS Word 2007)

Adding cross references might not seem useful until you need alteration to a huge document. Even though it is a small document adding cross references will reduce future redoing.

Lets think that you are righting a document and it has about 10 to 15 figures. So you have added the 'captions' using word's captions. Then you have several places where you have added references to those images and those are not cross referenced. Now you need to add a new chapter in between previous ones. So then you'll have to go to the chapters which are below to the added new chapter and change figure reference's chapter number. Or if you have added figures in between the previous figures of the same chapter then you will have to go changing all the figure numbers. Add another time... Do the changes again...Lot of redoing will be there. 

So you can avoid this by cross referencing. This can not only done to the figures, but also to the tables,equations etc.  

This is how the cross referencing is added. I have explained it using Word 2007.

1. First click on the place where you need to add cross referencing. Go to 'References' ribbon, 'Captions' panel and click on cross-reference.

2. Cross References window will pop up.

3.You have multiple choices. Can add references to any element which can be selected from the 'Reference type' drop down.

4.Lets add a cross reference to a figure. Then select the entity that you need to insert reference to from the 'Insert reference to drop down'.

5.Then Select your figure which needs a reference. This can be selected from the 'For which caption' field box.
6.Click on 'Insert' and you're done. The reference will appear at the selected place.