You evaluate individual performance before entrusting a new hire with a big task. Science suggests you should apply the same principle to teams.

Teams, as we've all experienced, aren't simply the sum of their parts. Through good mojo, friendly competition or complimentary talents, some groups wildly outperform what their individual members could accomplish working alone. But sadly, the converse is also true. Some teams produce less than the same people could crank out alone in a cubicle.

What separates the one sort from the other?

The ability of a team to gel together seems magical sometimes, something akin to the inexplicable chemistry that you either do or do not have with a date, but science, it turns out, actually has useful lessons to offer on how you can better ensure the teams at your company have chemistry.

A post by Dr. Christian Jarrett, a psychologist and author of the Rough Guide to Psychology, on 99u recently laid out five evidence-based techniques for getting more out of your teams, including one idea that applies a fundamental principle of car shopping to team selection. In short, writes Jarrett, take it for a test drive:

Individual assessment is such a fundamental part of working life, yet we often take it for granted. If you want the best person for a job, you put the candidates through their paces to see who comes out on top. The basic assumption is that if they do well in the test context, they'll also excel on future projects. It turns out the same principle applies to groups – U.S. researchers showed in 2010 that a team that does well in one situation will tend to do well on other challenges too.

He concludes that, "it's a mistake to think that putting together a bunch of skilled individuals will automatically create a gifted team." Social sensitivity matters as much as smarts, according to the same research (which, as a side note, means teams of mixed gender generally outperform all males groups because of women's tendency to be more socially sensitive). So before you hand over a huge pile of work to a newly formed team, consider giving them something smaller to gauge how well they'll perform together.

Interested in the other four research-validated ideas to improve your teams' performance? Check out Jarrett's uniformly interesting post. Or, if you're looking for other expert tips to encourage teamwork, architects and designers suggest that office design really matters, while Phil Geldart, author of In Your Hands, the Behaviors of a World Class Leader, has outlined seven fundamental building blocks of successful teams.

What's your top tip to optimize teamwork?

UMBC CSEE Colloquium

Integration of HBase and Lucene for real-time big data analysis

Yin Huang
CSEE Department, UMBC

1:00 pm Friday, 22 February 22 2013, ITE 227, UMBC

The increasing size of data sets have posed several challenges on real-time big data analysis, Business Intelligence for example, in terms of system scalability and data availability. Business Intelligence focuses on mining the big data, providing multidimensional visualization and thus supporting business decision making, ideally in a real-time fashion. Traditional relational database management systems fail to provide a flexible and stable solution. Several NoSQL database systems have been proposed to tackle these challenges, such as Cassandra and HBase. HBase, however, does not support full-text searching; current implementation of HBase only offers the row-key based indexing. In this talk, we introduce building Lucene index on top of HBase to support multidimensional queries for data mart under MapReduce framework, serving as the corner stone for future data analysis and business report.

Yin Huang obtained his B.S. in Computer Science from Nanchang University in 2009, and studied in Chongqing University for two years for his M.S. He started his Ph.D. program in Computer Science at the University of Maryland, Baltimore County in 2011. In 2012, he interned in IBM Ottawa lab for four months with the focus of using Multicore-Enhanced Hadoop System for Buisness Intelligence. His current research area is database, data mining, and parallel computing.

I’ll be honest with you. You shouldn’t test the profitability of your startup ideas based on the feedback from a few friends.

I’ve heard from some of my friends who come up with an idea, ask me about it and then take my answer as a feedback that is tagged as a result in market research. The point is, although the idea appears to be good, feedback from friends like me doesn’t really indicate the potential of the idea to float. I’m not their potential user and that means I’m hardly the passionate user they are targeting. I’m just a random guy asked to test the “goodness” of an idea.

It’s said that if you build something passionately to “scratch your own itch“, you’re most likely going to build something amazing. And this is totally true with a high chance of becoming very successful. Like Basecamp from 37Signals.

But let’s say you are just trying to scratch someone else’s itch. How do you figure out if your idea will float?

Will My Idea Fly?

Market research is for big guys and it’s a boring routine that has failed many times. It’s not a part of startup.

The key to figure out whether people will buy your idea (executed and packaged as a beautiful, useful product) is to test it out in the open even before you build the whole thing.

And by testing it out, I am not saying:

• “ask” people verbally
• ask your friends or their friends
• ask your family

I’m saying:

• find people who are relevant to your target market outside your friends’ circle: for instance, if you’re building an app for invoices, find people who are already using invoice apps or those who are still using traditional invoice software
• show them your interface and guide them through it: design the interface to a highly-usable level (no bare bones) and show them to these people to get their honest feedback
• then, depending on their feedback, build your product.

This is work at the ground-level because you’re going to spend time seeking such people, getting acquainted with them and then asking them to spare some time for you.

It takes a bit of time. You will have to network somewhat extensively to acquaint with such people. You will have to meet in-person with a bunch of folks and spend sometime with them showing your interface designs.

The benefits? I’ll list them out:

1. Passionate users make the best testers
   Imagine this: you’re building an invoice app. I – your buddy – have very little experience in invoicing and the most I do is send invoices through PayPal. Then, there’s someone who isn’t your friend but who spends half his working time invoicing. Who is the better user and, as a result, a better “pre-beta” tester? The other guy is a “passionate” user. I’m just your friend who knows nothing – and so gives not a damn – about invoice apps.
2. You’ll understand the real “itch” as against the guesstimated one
   Most of us just assume and guesstimate that X is a problem for a majority of the users. And we build based on that guesstimate. That’s not how you build successful startups. When you sit with a real user and show him the interface of your app (and guide him through the features), he’ll tell you what you missed. He’ll tell you what’s the most pressing need.
3. You get to tweak your app better
   Going this route also means you don’t have to abandon your idea. You tweak your idea based on the feedback and finally, like a professional diamond cutter, you refine your idea to a level where it becomes insanely useful.

Why “Interface” / Why Not Prototype?

I deliberately avoided saying prototype because building a prototype is a waste of time until you get the feedback. And you can get a decently relevant feedback just through the interface of your app. If you’ve read GettingReal, you know how the emphasis is on designing the HTML pages first: that’s pretty much enough for the first feedback.

Once you design your interface, you just walk the users through it. Don’t “sell” or boast about a feature. Just go through the functionality as if it’s a real app and let the features sink in.

And then build your magnum opus.

There are exception to the rule of “don’t ask/get feedback from friends/friends of friends.” It kicks in when friends/friends of friends are passionate and regular users too or when the idea relates to games, music, videos or other generic and popular market.

Image by Flickr User: Ian McConchie