0:15	are going to address four types of users
0:17	in this presentation the first user is
0:20	the naive users the second type of users
0:23	we are going to address is the
0:25	application programmers the third type
0:27	is the sophisticated users and the last
0:30	one specialized users so in this
0:32	presentation we are going to address
0:34	these four types of users let's start
0:36	with the first type of the user the
0:38	naive user
0:40	as the name itself says that they are
0:42	naive what do we mean by naive it means
0:45	the users have no knowledge about the
0:48	databases but they frequently work on
0:50	the system
0:51	you may be wondering how is that
0:53	possible when the users have no
0:55	knowledge about the database how can
0:56	they work with the system
0:58	yes they can
1:00	let's take an example
1:02	anyone can go to the atm machine and
1:04	withdraw money is there any prerequisite
1:06	that whoever wants to use the atm
1:09	machine needs to know about databases
1:11	sql and other languages
1:14	no they need to know only how to use the
1:16	system we need not know the technical
1:18	details about the system
1:20	i'll give you one more example nowadays
1:22	people are not preferring to stand in
1:24	the queue to book a train ticket instead
1:27	what they are doing
1:28	they are preferring online mode for
1:30	booking the ticket is there any
1:32	constraint or prerequisite that whoever
1:34	wants to book a train ticket they should
1:36	know the technology
1:37	no so they should know only how to use
1:40	the system they may not be needed to
1:42	know the working or the technical
1:44	specifications or the technical details
1:46	about the system so basically naive
1:48	users are unsophisticated users where
1:52	they lack the technical knowledge in
1:54	this subject naive users are referred as
1:57	unsophisticated users and they lack
2:00	database knowledge and what they are
2:02	required to know they require to know
2:03	how to use the system right because
2:06	already the application programs are
2:08	well written and they are going to just
2:10	invoke or use the already written
2:12	application programs say for example if
2:14	you're going to an atm mission to
2:16	withdraw money you should know how to
2:17	operate the system that's it because how
2:20	to withdraw the money everything is
2:21
predefined using the application
2:23
programs
2:24
and these naive users are going to
2:26
invoke or use the application programs
2:28
that was already written i'll give you
2:31
some examples clerk tellers in the bank
2:34
because they know how to access the
2:35
system and when some customer comes and
2:37
asks for certain details they will be
2:39
able to provide assistance to the
2:41
customers by giving the right
2:42
information by accessing the data from
2:44
the database but please be noted that
2:46
they are not going to supply sql queries
2:49
in order to fetch the data they know how
2:51
to use the system how easily we can
2:53
access the database system because we
2:55
are in a contemporary world where we
2:57
have multiple web interfaces mobile
3:00
interfaces user interfaces are defined
3:03
say if you want to book a movie ticket
3:04
are you preferring to go to the movie
3:06
theater to book a ticket no we are not
3:08
preferring that nowadays from my mobile
3:11
phone or from my laptop or from my
3:13
desktop i can easily book a movie ticket
3:15
or a train ticket or a flight ticket
3:17
even i can purchase goods online
3:19
so users are expected to know how to use
3:22
the system and as mentioned we also have
3:25
some desktop applications and we should
3:27
know how to use the system that is the
3:29
only requirement for the users so we are
3:31
done with the first type of users the
3:33
naive users let's now move on to the
3:36
second type of users the application
3:38
programmers we known iv users are going
3:40
to use or invoke the application
3:42
programs that was already written who
3:44
has written those application programs
3:46
the application programmers the software
3:48
developers right so these software
3:50
developers or application programmers
3:53
are computer professionals and they are
3:55
specialized in development of the
3:56
software
3:58
in other words we can also say that they
4:00
know some programming languages how to
4:01
write a program how to create a software
4:04
how to write an application as well when
4:06
they know how to develop an application
4:08
they obviously use some application
4:10
development tools and other tools and
4:12
technologies that are required to
4:14
develop an application and obviously
4:16
what's their main job is to develop the
4:18
user interfaces that are really user
4:20
friendly and easy to access because they
4:23
are going to develop the application
4:24
programs which are not going to be used
4:26
by other software professionals the
4:29
applications that they develop are going
4:30
to be actually used by navy users also
4:33
so in that case the system or the
4:36
application they create in other words
4:38
the user interfaces they create it
4:40
should be user friendly and obviously
4:42
the application developers use rapid
4:44
application development tools for
4:46
developing the application programs
4:48
and obviously what these application
4:50
programmers are going to develop
4:52
applications or web or mobile interfaces
4:55
to be precise they are going to develop
4:57
user interfaces that are really user
4:59
friendly so we are done with the second
5:01
type of users the application
5:03
programmers let's now move on to the
5:05
third type of users the sophisticated
5:07
users we know naive users are
5:09
unsophisticated users but now we are
5:12
talking about sophisticated users so
5:14
obviously they know the noken corners of
5:16
the system and they also know how to
5:19
interact with the system these
5:21
sophisticated users they use the
5:23
database query languages because they
5:25
know how to interact with the system
5:27
let's take the database administrator as
5:29
an example he is a sophisticated user
5:32
how he knows how to write queries in
5:34
order to fetch the information from the
5:36
database so sophisticated users example
5:39
database administrator knows how to use
5:41
the database query languages and also
5:44
they know how to use data analysis
5:46
software because they are directly
5:49
interacting with the database database
5:51
contains data and not only they are
5:53
going to use the queries for just
5:55
fetching the data or storing the data
5:57
they also use some data analysis
6:00
software in order to do the analysis as
6:02
already mentioned in the first lecture
6:04
of the subject today there is a need for
6:06
data analyst and business analyst in the
6:09	job market so these users will be able
6:11	to know how to use some data analysis
6:13	software so we are done with the third
6:16	type of users the sophisticated users
6:18	let's now move on to the fourth type of
6:20	user the specialized users
6:23	the name itself says that they have
6:25	additional skill sets in other words
6:27	they have some specialized skill sets
6:29	what type of users they are the
6:31	specialized users are these users are
6:34	specialized to use some database
6:36	applications not only simple database
6:38	access they also have some specialized
6:41	database applications say for example
6:43	they will be proficient with computer
6:45	aider design systems we can see a lot of
6:48	innovations in the artificial
6:49	intelligence area so specialized users
6:52	will have knowledge about the knowledge
6:53	base and expert systems and not only
6:56	this the specialized users not only deal
6:59	with simple databases they will also be
7:01	dealing with the multimedia databases as
7:04	well they know how to create a database
7:06	how to access the database when it deals
7:08	with the multimedia data what's a
7:10	multimedia data it's not simply the text
7:12	data it is the audio data video data
7:15	text animation graphics images
7:17	whatsoever and these specialized users
7:20	are working for the projects that can be
7:22	deployed in the current and even in the
7:24	next generation so we are done with the
7:27	specialized users also in this
7:29	presentation we have seen four different
7:30	types of users of database number one
7:33	then iv users number two application
7:36	programmers number three sophisticated
7:38	users and number four specialized users
7:41	and we have a very important user in the
7:44	database who is that the database
7:47	administrator in the next presentation
7:49	we will see elaborately about the
7:51	database administrator and the roles and
7:53	responsibilities of a database
7:55	administrator please be noted that it's
7:57	a high privilege job to be a database
8:00	administrator because he or she has the
8:02	complete privilege over the database
8:04	system in the organization
8:06	and that's it guys i hope you guys
8:08	enjoyed this presentation and thank you
8:10	for watching
8:12	[Applause]
8:14	[Music]