The one and only thing you should do to validate your idea is...

Pre-sell the solution.

TAKE MONEY. Real actual money.

The only way to tell if something is viable is to take money from people who will buy it.

Don't be fooled by people who say you can't do this. Apple does this all the time. The people you are looking for are called "early adopters".

This is how I validated my business (www.referralriver.com)

I talked to my target market (people I thought I could help and who I also thought could buy or actually had money to buy). At the end of the conversation I asked if they would pre-purchase the solution before it was made.

Many didn't but some did. After I had enough people that purchased I could determine that yes this is a valid idea and worth pursuing.

My general rule: Pre-sell to at least 10 people. If your solution/service/ or product has a lifetime value (LTV) of less than $1,000 then you need more than 10 pre-sales to validate. I happen to be in software so that's a subscription model so for that industry any solution that costs less than $50 per month per user is very difficult to build and be successful at, so a minimum of 10 pre-sales of at least $50 per month per user would validate an idea for me.

Before finding this one I went through maybe 10 other ideas and decided not to pursue them (mostly because no one would pay for the solution before it was built!)

Don't ask "hey would this be useful?" or "would you pay for this if it existed?"

Ask for the sale now.

If people don't pre-purchase this "idea"...then it's crap. Sorry, but guess what?! That's great news. You get to move on instead of wasting your time, money, and resources building something that no one will buy.

If you want to know more, or if you find this useful, book a time with me. Happy to help.

Please upvote this answer if you found it useful.

The most sure fire way of vetting an idea like this is to talk to the folks you imagine using this product or service.

For example, if your service helps widget buyers find and purchase the finest widgets of the world; strike up a conversation with those buyers and talk to them about the struggles and frustration they have with buying widgets.

Then introduce your idea, "Would [my service] help you find better widgets? What would make you say, "WOW! This is what I need.""

Good luck! I'm happy to help you further with this process. I'm working with a number of entrepreneurs right now who are in various stages of vetting their own ideas for services.

-Shaun

You're smart to want to research the idea first. Start by validating that the problem is actually a problem people want to solve. Like Shaun said that takes getting out and talking to people. I'd recommend not asking "would my idea make your life easier?" People are overly nice and they love to say "Yes, of course." Also, try strangers over friends for the same reason. My most recent startup came from standing in a grocery store aisle and talking to random people about the choices they were making and why.

If you validate a problem, then you move on to brainstorming the possible solutions - very important to ignore solutions until you know the problem. Don't try to find a problem for the solution you have in mind.

Once you have the problem and the solution, then you can develop a quick MVP and see if it gets traction/buyers.

If you can hit all those steps, you might have something worth pursuing. The process takes a month or two, but that's a lot better way to start than building something and trying to force it on people. I've tried that - didn't work.

Feel free to reach out with any questions. Good luck!

You need feedback from the people you think would be interested in it. To get that you have several options:

1) Ask friends/family in your theorized target persona if they'd be interested.

2) Post on online communities asking the same thing (e.g. appropriate sub-Reddits).

3) Go in person to the workplaces of your target persona. Bring donuts, or coffee or something around lunchtime, introduce yourself and ask nicely and casually if you could ask them some questions (i.e. if they would be interested in xyz, why/why not, any suggestions, etc.)

4) Make a quick 'landing page' on Weebly or Squarespace, and then do cheap advertising on Google, Facebook, etc. to draw people to it. Make sure you set up analytics first (e.g. Google Analytics)

5) Be creative and think of some other way

If you'd like more specific advice tailored to your actual idea I'd be happy to help out,

best,

Lee

Some great tips already listed here. I'll add one additional tip that cuts through everything that is simply sell your product. If you can't sell it to at least one business (if a B2B) or to 10 consumers (if a B2C) then you won't be able to sell it to thousands. I'm in the business of helping validate ideas and selling is the best measure. Best of luck and if I can be of help, please connect via my site http://TryHypothesis.com

This is a common question that I've seen and answered before. You are not alone!

A simple way to validate any startup idea is to put together a landing page and drive some traffic to it. Unbounce is a great tool for building landing pages.

Spend a few hundred dollars on Google Adwords to drive relevant traffic to your page to see if you can generate leads for your service. When you generate some leads, get on the phone with them and pitch your business. If they are interested, you can let them know you will be launching soon and you will notify them. If they aren't interested, it will help indicate if your idea is something that people want.
For a few hundred bucks, and using a simple landing page, you can generate sufficient data to help you understand if you are heading in the right direction.

Another tool I like to use is Survata. With just $100 you can get 100 objective survey responses from your target audience.
I also wrote a blog post about how to validate your idea. You can check it out here:

http://www.startuprevival.com/7-ways-to-validate-your-idea/

The strength of any Idea can be determined in five stages
If it is algorithm related then the idea is to speak to the subject matter expert
If it is in common sense of trying to understand the market proposition then you need to speak to persons like me
If the idea is related to finding the clients in the niche area of expertise then you need to work on your own with industrial contacts
If the idea is to negotiate a sales pitch then you need to contact a scheduler who can afford services to you
The main determination of the team to build worst Idea can also become a super flourishing disruptive start-up venture.
If you want to talk to me further please contact me through clarity.fm
Thank You
With Regards,
Karnati Kiran

I recently went through a Start Up Weekend event as well as a Venture School program through the University of Iowa. The entire course was on doing exactly what you are asking. They teach the lean start-up and business canvas model of proving a business idea.

The core strategy with proving your business has potential is customer discovery - determining a hypothesis and testing it through interviews (customer discovery). You'll do these interviews with several different hypotheses, concerning every aspect of your business idea - the problem, the potential solution, who are the possible consumers, what will they pay (if they will pay), distribution models, sales tactics, etc. I've provided a few links that present the theory behind the business canvas. It provides a means to be agile in your business development, helping you identify when to pivot or change up your idea to best fit the market needs.
www.slideshare.net/esaife/business-model-canvas-101

https://www.youtube.com/watch?v=QoAOzMTLP5s

https://strategyzer.com/canvas

Good luck! Happy to chat further if you have questions about this concept or how to use it.

Hi
First of all, the fact that you are talking about market validation is great. I've seen so many startups invest time and money, only to find that no ones wants/needs their product, or that they only want a certain aspect of it, or they aren't willing to pay the requested price. So you're already one step ahead.
Answer: the sooner you validate your product, the better! That said, the version you are validating needs to be representative of the end product, or else the validation isn't reliable. So, what you should do is:
1. create a business model canvas (which is what all startups should start with before creating a business plan),
2. Setup a Wix or Wordpress website (this can be done for free / very low costs). On the website, include the price of the product/service, and enable people to order it (yes, even if it doesn't exist!). I am happy to explain how this can be done even though you don't yet have the final product and by still being fair to the people who click the "buy/order" button.
3. Spend a small amount (say $100 - depending on your budget) validating the idea (promoting the product/service that you listed in the previous stage).
This way, after only spending a very small amount, you will be able to know (if you did it right):
a. Do people like your product.
b. Do people want/need your product (not the same as 'a').
c. Are people willing to pay for your product? (this being the most important stage)
d. How much are they willing to pay? (you can check this by having 2-3 landing pages with different prices on each).
2 additional important points:
a) in order to rule out external factors like an unattractive landing page or advertising campaign, and assuming you have the time, create multiple landing 2-3 landing pages with different designs.
b) during the above process, don't forget to check how much it costs you to get each user/customer to click the "buy" button. If for example each click on your promotion/advertisement costs you $2, and only every 10 people who click go on to the "buy" page, that means each sale is costing you $20. Then check what your average profit per sale is, and then you'll know if your service/product is worth pursuing (obviously there are additional factors like return customers, referrals etc, but you will get a good estimated/validation of the idea/business).
I'm happy to help you with this matter further, as this is a critical stage which if done right can save you a lot of time and money.
Best of luck!