Qt软件是最好的跨平台的GUI开发框架

软件名称:Qt人机界面HMI开发工具软件
软件平台:Windows,Linux和macOS等14种OS
开发商:Qt Company
软件授权:商业授权、LGPL、GPL
研发时间:1991年
企业类型:欧洲芬兰纳斯达克上市
公司规模:500人左右
公司背景:科尤特软件是Qt在中国的子公司。

Qt人机界面GUI产品
(1)设计工具:Qt Design Tools
(2)开发工具:Qt Development Tools
(3)质量保证工具:Testing-tools  (Squish\Coco\Test center)
(4)数字广告工具:Qt Digital Advertising Platform

Qt应用场景:
开发的移动端ARM、嵌入式Linux、X86 PC端,
(1)汽车行业:汽车智能座舱娱乐主机仪表系统,ADAS、ARHUD、自动泊车、激光雷达。客户有:奔驰、Stellantis、大众、保时捷、沃尔沃、起亚现代、丰田、日产、本田、Teala、松下、电装、哈曼、均胜、伟世通、航盛、东软、德赛西威。
(2)手机公司:华为、VIVO、OPPO、联想、小米、苹果等手机厂商。
(3)移动互联网行业:字节跳动剪映、华为花瓣、美图秀秀、网易、百度、阿里巴巴。
(4)证券行业:华泰证券、国信证券等大部分证券期货交易系统,特定跨平台和实时性。
(5)信创行业:麒麟、统信OS,华为、海思、联想,华三、大华、海康、宇视。
(6)机器视觉行业:康耐视、云从、商汤、奥普特、思谋。
(7)工业自动化行业:HMI工业组态屏,西门子、ABB、施耐德、汇川、大族,信捷。
(8)电话会议系统:思科、微软、腾讯会议、亿联、新网锐捷。
(9)EDA行业:Mentor、Synopsys、Cadence、华大九天、芯和半导体。
(10)半导体行业嵌入式设备:ASML、上海微电子、恩智浦,海思半导体,华星光电,天马微电子。
(11)医疗器械行业:手术机器人、CT数字化影像设备,通用医疗、东软、西门子、史密斯、联影大部分医疗产品。
(12)通讯设备行业:华为、中兴、爱立信、西门子。
(13)仪器仪表行业:赛默飞,安捷伦、是德、罗德施瓦茨。
(14)军工行业:海陆空天军工装备,中国航天、航天科工、中国兵器、兵器装备、中国电子、中国科学院。

Qt开发的知名的桌面端应用程序:

(1)3D Slicer: a free open source software for visualization and medical image computing;(是一个基于VTK的开源的可视化和医学影像计算的软件)
(2)ParaView: 也是一个基于VTK的数据可视化的工具软件,在流体力学、空气动力学、生物医学、统计学等有数据可视化需求的领域中发挥重要的作用;
(3)Google Earth: Google开发的一款三维虚拟地图软件;
(4)Opera: 著名的网页浏览器,在欧洲的市场占有率很高;
(5)Qt Creator: the free software cross-platform integrated development environment from Nokia;(是由诺基亚开发的一个可以跨平台的集成IDE)
(6)Skype: 一个基于P2P的VOIP聊天软件;
(7)VirtualBox: Oracle开发的虚拟机软件;
(8)YY语音:是一个可以进行在线多人语音聊天和语音会议的免费软件,在中国拥有庞大的用户群;
(9)咪咕音乐:是中国移动倾力打造的正版音乐播放器。
(10)WPS Office: 金山公司(Kingsoft)出品的办公软件,与微软Office兼容性良好。
(11)Adobe
(12)Google Blizzard
(13)AutoDesk

什么是Qt?
Qt 是一个1991年由Qt Company开发的跨平台C++图形开发工具。是一个跨平台的 C++ 图形用户界面库,可以同时支持X86桌面应用程序开发、Linux嵌入式开发和ARM移动开发,覆盖了现有的所有主流平台。
2008年,Qt Company科技被诺基亚公司收购,Qt也因此成为诺基亚旗下的编程语言工具。2012年,Qt被Digia收购。
2014年4月,跨平台集成开发环境Qt Creator 3.1.0正式发布,实现了对于iOS的完全支持,新增WinRT、Beautifier等插件,集成了基于Clang的C/C++代码模块,并对Android支持做出了调整,至此实现了全面支持iOS、Android、WP,它提供给应用程序开发者建立艺术级的图形用户界面所需的所有功能。
2021年8月,发布Qt 6.2版本。

可以做什么?
使用 Qt 开发的程序非常多。自从1997年Qt被用来开发Linux桌面环境KDE大获成功开始以来,Qt就成为了Linux 环境下开发 C++ GUI 程序的事实标准。

虽然在Windows下,GUI解决方案比较多,基于C++的有Qt、MFC、WTL、wxWidgets、DirectUI、Htmlayout等等,基于C#的有 WinForm、WPF等等,基于Java的有AWT、Swing等等,但是Qt依然占据了很大部分。

在消费类电子、工业控制、军工电子、电信/网络/通讯、航空航天、汽车电子、医疗设备、仪器仪表等相关行业,也都有使用 Qt 开发工具。

Qt有什么特点优点?
简单易学

Qt 封装的很好,少量代码就可以开发出一个简单的客户端,他的宗旨也是 code less , crate more 。

面向对象

良好封装机制使得Qt的模块化程度非常高,可重用性较好,便于移植。这一点对于用户开发来说是非常方便高效的。

并且Qt提供了一种称为信号与槽signals/slots的安全类型来替代callback,这使得各个功能模块之间的协同工作变得十分简单,也很容易理解。

大量的开发文档

前些年资料还是很少的,但是随着Qt的发展以及越来越多的开发者,资料也越来越丰富了,这些都能够成倍降低学习成本。

漂亮的界面

Qt 很容易做出漂亮的界面和炫酷的动画,并且支持 2D/3D 图形渲染,支持 OpenGL,而 MFC、WTL、wxWidgets 比较麻烦。

独立安装

Qt 程序最终会编译为本地代码,不需要其他库的支撑,而Java要安装虚拟机,C#要安装 .NET Framework。

优良的跨平台特性

如果你的程序需要运行在多个平台下,同时又希望降低开发成本,Qt 几乎是必备的。

Qt值得学习吗?
详解Qt的几种开发方式

丰富的 API

Qt包括几百个C++类,还提供基于模板的file,I/O device,directory management,collections,serialization,date/time 类等等。

如果用户使用 C++,并且对库的稳定性,健壮性要求比较高,并且希望跨平台开发的话,那么使用 Qt 是较好的选择。

因为Qt是给两种应用设计的框架。

一种是必须跨平台的应用,无论如何都要支持两个或以上平台,并且两个平台要求功能同步,交互体验基本一致,但是开发成本不能成倍增加,Qt基本就是最好的选择了。

第二种是规模很大的应用,源代码规模在至少30万行以上,并且带有复杂UI交互,对发布的时间进度有较高要求,开发组规模在10人或以上。不符合以上两种情况的应用虽然也可以用Qt开发,但是和用其他技术比起来没有特别突出的优势。

7 Key Principles of Value-Based Selling

Lestraundra Alfred

Lestraundra Alfred

Updated: 

Published: 

As a sales professional, your job is ultimately to sell, but that doesn’t necessarily have to be your main mission. Enter something known as value-based selling (also known as value-added selling) — the process of taking a consultative approach to sales and conveying the value of a product or service along the way.

value-based-selling (1)

Here, we’ll take a closer look at value-based selling, explore its principles, check out the value selling framework, and go over some examples of what it might look like in practice.

Free Download: Sales Plan Template

The goal with a value-based selling approach is to put the needs of the customer first, guiding them through the sales process to make an informed decision to best suit their needs (ideally, leading to the purchase of your product). This creates anticipation for the positive result having your product will provide in the mind of the customer.

Many prospects are constantly bombarded with messages pressuring them to buy. Stand out from the competition and create long-term happy customers by providing more value than anyone else.

Principles of Value-Based Selling

value based selling

1. Do your homework.

Remember, the goal of value-based selling is to close the sale by putting the needs of your prospect first. However, you can’t put your prospect’s needs first if you don’t know what those needs are. Always do your homework to understand your contact — usually well before hopping on a sales call.

When researching a prospect, aim to understand their company and industry, background, and current pain points. By understanding these pieces of information, you’ll have a solid grasp of how to serve them best.

Here is some information you may want to consider looking for as you prepare for your call:

  • Their current role and previous job experience — A simple LinkedIn search can help you learn about your prospect’s career history. Are they new to their current role? If so, they might still be ramping and could benefit from learning from you. Is this their first time making this type of purchasing decision or have they been in similar roles? If they have experience in this area, they may be more interested in expediting the process, so you can better serve them with efficiency.
  • Common connections — If you have a common connection with a prospect, that can help you build trust with them faster. Additionally, the contact could help provide key insights into the prospect’s pain points and how you could provide value to them.
  • Content shared on social media — If your prospect has a public Twitter or Facebook profile, checking out what content they have recently shared or engaged with can give you an idea as to what is currently important to them.
  • Their company’s website, press, and social media pages — This will tell you whether their company has undergone any recent leadership changes, is currently releasing a new product, or has been in the news.
  • Their contact listing in your CRM — Before hopping on the phone with your prospect, check out their profile in your CRM. This will tell you if and when any of your colleagues have engaged with them, and what content from your company they have opened or engaged with.

Additionally, performing a simple Google search for their company’s competitors will give you a great deal of information about their industry landscape.

2. Don’t jump into your sales pitch too early.

Resist the temptation to dive into your sales pitch as soon as you get your prospect on the line. Though you might have learned a great deal about their perspective during your research, nothing beats hearing directly from your prospect themselves.

Before convincing them to make the sale with a generic pitch, give them space to explain their current situation and what they are looking for. In addition to helping you build trust with the prospect, not jumping immediately into your pitch can give you more insight into how you can best provide value to them and can help you position your product better for the sale.

3. Communicate how your product provides value to the customer.

If your prospect didn’t have a problem they were trying to solve or a need to fulfill, they wouldn’t be in the market for a new product. It sounds obvious but in order to help the customer understand why your product is the solution to their problem you have to understand and be able to clearly articulate why your product is the solution to their problem.

As you look to sell, make sure the benefits of your product are easy-to-understand and relevant to your prospect. For example:

  • Is your product designed to reduce cycle time and improve productivity for those who use it?
  • Does your company offer free training that will help customers quickly get up to speed after they have made their purchase?
  • Does the purchase of your product include free automatic updates for customers to make their jobs easier?

Whatever those unique differentiators are for your offering, make sure they are aligned with the needs of the customer and use these points to guide your sales conversations.

4. Focus on teaching instead of selling.

One of the most effective ways to provide value to your prospects and customers is to help educate them on a topic of interest. When you take an education-first approach, you become their go-to resource for information which helps you build trust.

Once trust is established and the prospect is ready to buy, your offering is far more appealing because you have already demonstrated value instead of pushing the sale without any proof of value for the buyer.

For example, if you work in software sales, instead of running through a recycled sales pitch with a prospect you can first contact them asking what their top three challenges are. Then during your meeting instead of talking at them with slides, you can walk them through possible solutions they could take to solve their challenges in an informative, engaging way.

5. Guide the prospect through the buying process.

When taking a value-based approach, your role as a sales professional is to act as a consultant helping your prospect make the most informed purchasing decision. Share fresh ideas and strategies that can help your prospect improve their own competitive positioning avoiding the temptation to tell the prospect what to do.

For example, if your prospect asks if they should take an action that you would typically not recommend, share a real-life example of how taking said action resulted in a setback for another buyer. This helps your prospect maintain their position in the driver’s seat for their buying decision and helps you convey your message in an honest, helpful manner.

6. Keep a personable approach.

As you embark on value-based selling make sure you keep a conversational, personable tone when engaging with your prospects. This shows you have a genuine interest in them and are not merely talking at them to make the sale. Here are a few tips to help you keep things conversational:

  • Ask open-ended questions — All of the questions you ask your prospect should be for the sake of genuinely getting to know them, and they should all require answers that require some explanation. Aim to not ask questions that can be answered with a simple “yes” or “no.”
  • Master the art of small talk — While small talk may be the bane of every introvert’s existence, there’s no denying it can be a powerful tool for building trust with your prospect. When in doubt, asking about their professional interests and responsibilities or upcoming events they are planning or attending can be effective go-to topics.
  • Speak as if you’re talking to a friend — Ultimately, you want the prospect to feel like they are receiving advice from a trusted advisor. Deliver your content the way you would deliver it to a friend to keep it personable and relatable.

If you’re looking for some helpful conversation starters, this post is full of great tips and examples.

7. Add value during every interaction.

Last but certainly not least, make sure you add value each time you engage with your prospect to continue building trust and creating a long-term positive experience. You want them to feel heard and supported each time they interact with you.

This could look like making sure you leave plenty of time to answer their questions in each meeting, not interrupting them when speaking, or even sharing helpful articles or content that is relevant to their business even when you aren’t actively engaged in a sales conversation. The small steps you take to make your prospect’s job easier can pay dividends in the long run.

A Value-Based Selling Framework

1. Value-Based Selling Focused on Qualitative Value

Your value selling framework doesn’t have to rely on hard numbers. In many cases, speaking to the more abstract, qualitative benefits your product or service can offer is in your best interest. Delivering on this tactic leans heavily on your understanding of your prospect’s day-to-day pain points.

How can you make life easier for your buyer and their employees? What can you do to iron out hitches, hiccups, and inefficiencies they face consistently? And what will the benefits that come with that “ironing out” look like?

If you can demonstrate what they stand to gain from your offering from an ease of use or personal success perspective, you can frame an intriguing value proposition your prospect will be receptive to.

2. Value-Based Selling Based Focused on Financial Incentives

This isn’t exactly radical or shocking to point out, but businesses generally exist to make money. Financial success is one of the more obvious ways to gauge the value of a product or service — so being able to point to how your offering can help in that realm provides a solid basis for effective value selling.

If you can give hard figures or reference points for how much revenue your prospect can expect to generate with your offering or how it can reign in operating costs, you can frame a compelling, more concrete value proposition for them.

You can get there by providing case studies of similar businesses you’ve helped in the past or citing certain processes and practices they implement that you can make more efficient. One way or another, show that your offering can have a direct bearing on their financial wellbeing.

3. Value-Based Selling Focused on Differentiation

Successful companies generally don’t blend in with the pack. They’re distinct from their competition in some way, shape, or form. That’s why pushing a differentiation-oriented angle while value selling is one of the more effective roads you can take.

What can your offering do to enhance the most compelling, unique aspects of your prospect’s brand identity? If you can show that your product or service aligns well with who your buyer wants to be within their competitive landscape, you’ll set yourself up for a successful value selling effort.

4. Value-Based Selling Focused on Security or Risk Aversion

Anxiety is a powerful motivator, and almost every business has its fair share of risks that keep its leadership up at night. Those could be anything from direct security threats to emerging industry trends they might be struggling to keep pace with.

If you can identify any specific fears or stressful vulnerabilities your prospect is dealing with you’ll find a solid in for effective value selling. As you can probably assume, business leaders generally prefer operating as smoothly and securely as possible — if your offering can get them there, don’t hesitate to sell on that basis.

Value-Based Selling Examples

For the sake of these examples, let’s imagine a SaaS company that sells a construction management platform. A rep from that business is selling to a local fast-food chain, looking to expand its operations into a new region. Here’s a look at how they might approach each type of value selling.

1.Qualitative Value-Based Selling Example

In this scenario, the rep has been working with leadership at the chain for around a month. In one of their conversations, the CEO mentioned being frustrated with lapses in communication with construction managers.

Let’s say the rep’s platform offers executives comprehensive visibility into their construction managers’ project management. If they wanted to sell based on qualitative value, they might speak to how owners who leverage the platform deal with fewer headaches from miscommunication with their construction teams.

2. Financial Value-Based Selling Example

If the rep wanted to value sell based on financial incentives, they might try to cite case studies of other regional restaurant chains that saw boosts in revenue or considerable savings as a result of leveraging the platform. They would likely reference the hard numbers behind those improvements and demonstrate how their prospect’s business could fit a similar mold.

3. Differentiation Value-Based Selling Example

Here, the rep might try to value sell based on differentiation by speaking to how the prospect’s direct competitors that aren’t leveraging construction management platforms are consistently running into delays and conducting inefficient builds.

The rep would let the prospect know that their company’s software could give the chain some extra oomph to expand more effectively — relative to its industry peers.

4. Security Value-Based Selling Example

In this case, the rep would likely discuss the various threats and hitches businesses like theirs deal with when it comes to rapidly expanding into new territories — including construction delays, surprise costs, and potential disputes with contractors and builders.

See success with value-based selling.

Value selling is one of the more customer-centric approaches reps can take when engaging with prospects. It’s a philosophy purely rooted in “solving for the customer.”

If you want to leverage the method successfully, be sure to lead with empathy, consider your prospect’s needs holistically, listen actively, and take on an advisory role in the process. If you can nail those key elements, you’ll see the results you want from your value selling efforts.

Editor’s note: This post was originally published on November 12, 2019 and has been updated for comprehensiveness.