Job Fair Pervasive Computing System Design Report Project Team: Dec Client: Iowa State University Faculty Adviser: Qiao, Daji, PhD Course Coordinator: Jason Boyd Team Members: Adam Lee Kartik Subbu Nicholas Oakman Gabriel Semonis 1

Problem Long lines at certain employers but not others Students wasting time waiting for employer or navigating to find where shortest line is. Need System to automate the selection process of which employer to visit next based on student and employer criteria and line lengths. 2

Create a system where students can “check in” at booths to inform system that he/she is waiting in that booth’s respective queue Inform students in which order they should visit booths if they want to save time 3

TermMeaning EmployerEmployer in our case refers to the entity that stores information on required majors, years, and numbers of students. Employer StationA laptop owned by Iowa State used for “Employer Check-In” Employer Check-InThe process of checking a student into the an employer station. Normal procedure involves simply swiping the RFID tag Fair Check-inStudents checking into the coliseum and getting their RFID tag RFIDRadio Frequency Identification TouchatagA RFID system developed by Alcatel- Lucent Bell 11

Indoors (65-75˚F) Software is mostly written in PHP Windows Laptops Pentium III Internet Explorer or Mozilla Firefox Web Browser b, g, or combo Ethernet cards Power Available Laptop Battery 120 Volts 60 Hz Wireless Internet Available Speed 11 Mbps to 54 Mbps 12

Functional Prototype System (small-scale) Code and Schematic Testing Results User Manual 13

Touchatag RFID reader Touchatag RFID tags Server PHP support mySQL database Terminal Computers Employer Station Laptops 14

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Interface USB connection Compatibility Microsoft Windows Mozilla Firefox Internet Explorer Google Chrome Constraints Must have active internet connection Must be logged in to a Touchatag account Frequency 13.56MHz 16

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Tags only store their unique ID so all associations must be done on a higher level Have adhesive on the back so can be easily attached to business cards. Temporarily could be appended to ISU card. 18

Pre-FairFair Check-inEmployer Station Check-in/Check-outTerminal 19

Before the career fair starts, a few things need to be done: 1. Tags must be associated with a unique ID independent of student that will grab it later 2. Students must input their information online to associate their username with their major, year, and interest (full-time or co-op) 3. Information of employers must be inputted based on what majors they accept, what years they take, and what type of position they offer (full-time or co-op) 20

Student Pre-Registration Student associates address with his information including: major, year, full- time/co-op selection Student Tag Association Student can, after entering the career fair, grab a tag and associate it with their username using a password Employer Registration Associate employer ID with their job opportunities based on major, year, full- time/co-op offerings Employer IP/Scanner Association Associate Employers to IP addresses or their unique scanners 21

NOTE: the employer registration screen will be made in PHP

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This procedure can be done using Touchatag’s easy to use interface on their “control panel”. We will configure each tag to be associated with a certain URL f.e. This data will be used later in associating the user with that tag. 24

25 Control Panel to associate tags to URLS

Students will go to a website, for example Here they will be able to create an account based on their ISU username f.e “adamrlee” and then securely submit their major, year, and desired position. 26

We will be able to input this information based on what information is already available from these employers. This data will be added to the database before the fair starts. 27 Employer nameMajorsGradesOpportunities Apple ComputerComputer Engineering Computer Science Software Engineering Junior Senior Full Time Co- Op

The fair check-in is a term used to describe arriving at the career fair and associating your tag with your username and password. A form will be at the main check in terminal requesting username and password that was obtained by registering earlier. How we do this is, since each tag is already associated with an ID, we can check the ID for a username association. If none, then we can simply prompt for a username and password. F.e

This is the most important feature of our system. It is when a student swipes his RFID card to indicate that he is in a queue for an employer. 29 Functionality: 1.Check Into Employer Queue 2.Indirectly Check out of Other Employer Queue

After a student is done visiting a employer, there are 3 ways he can checkout: 1. Manually swipe the tag again, which will check whether he is currently in a queue and remove him from it 2. Swipe into another booth, which will check lower the number of students in the previous booth and enter him into the new booth 3. Timeout – after 1 hour he will be automatically checked out 30

Terminal Stations are used to retrieve a hard copy of where to go next. 31 Functionality: 1.Query for Next Visit List 2.Print Out Next Visit List 3.Indirect Checkout

Touchatag Testing Using multiple units Code Unit Testing Testing boundary cases, invalid inputs, etc. Server Stress Testing Rapid and multiple requests to server simulations 32

Testing the Touchatag We will be testing the touchatag system after getting more readers (we currently have just one) and check for conflicts etc. when using single or multiple IDs. Unit Testing on PHP code Create simple test programs to run each function on the script, taking care to test boundary conditions and anomalies 33

Resource Requirements Item Number of Items Cost Explanation Poster 1 $40 Touchatag Readers 3 $120 Employer Station LaptopsfreeBorrowing, Checking out Terminal Computersfree Borrowing, Checking out Server Computer 1 free CSG is letting us use one Totals$520 34

Using RFID technology and a MySQL database the system will help students visit more prospective employers by keeping track of how many people are in the various employer’s lines and sending students to the shortest line based on set criteria. 35

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